<p>There are a lot of such NPCs. Some will attack you after saying one word. Others will attack you only after you have had a proper conversation. Below is a list of NPCs with this mechanics that I know.</p><ul><li><p>A know.</p><ul><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/a_wrinkled_bonelord.gif" style="height:44px; width:133px"></p></li><li><p>Adrenius <img width:133px">A Wrinkled Bonelord <img Bonelord </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/adrenius.gif" style="height:50px; width:54px"></p></li><li><p>Alwin <img alt="" src="https://tibiopedia.pl/images/static/npcs/alwin.gif"></p></li><li><p>Arnold <img alt="" src="https://tibiopedia.pl/images/static/npcs/arnold.gif"></p></li><li><p>Baa'Leal <img width:54px">Adrenius </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/alwin.gif">Alwin </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/arnold.gif">Arnold </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/baaleal.gif" style="height:55px; width:70px"></p></li><li><p>Bambi Bonecrusher <img width:70px">Baa'Leal </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/bambi_bonecrusher.gif" style="height:45px; width:128px"></p></li><li><p>Barbara <img alt="" src="https://tibiopedia.pl/images/static/npcs/barbara.gif"></p></li><li><p>Baxter <img alt="" src="https://tibiopedia.pl/images/static/npcs/baxter.gif"></p></li><li><p>Blossom Bonecrusher <img alt="" src="https://tibiopedia.pl/images/static/npcs/blossom_bonecrusher.gif"></p></li><li><p>Bunny Bonecrusher <img alt="" src="https://tibiopedia.pl/images/static/npcs/bunny_bonecrusher.gif"></p></li><li><p>Busty Bonecrusher <img alt="" src="https://tibiopedia.pl/images/static/npcs/busty_bonecrusher.gif"></p></li><li><p>Chester Kahs <img width:128px">Bambi Bonecrusher </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/barbara.gif">Barbara </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/baxter.gif">Baxter </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/blossom_bonecrusher.gif">Blossom Bonecrusher </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/bunny_bonecrusher.gif">Bunny Bonecrusher </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/busty_bonecrusher.gif">Busty Bonecrusher </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/chester_kahs.gif" style="height:45px; width:88px"></p></li><li><p>Christoph <img alt="" src="https://tibiopedia.pl/images/static/npcs/christoph.gif"></p></li><li><p>Dabui <img alt="" src="https://tibiopedia.pl/images/static/npcs/dabui.gif"></p></li><li><p>Daniel Steelsoul <img alt="" src="https://tibiopedia.pl/images/static/npcs/daniel_steelsoul.gif"></p></li><li><p>Demonguard <img width:88px">Chester Kahs </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/christoph.gif">Christoph </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/dabui.gif">Dabui </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/daniel_steelsoul.gif">Daniel Steelsoul </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/demonguard.gif" style="height:64px; width:73px"></p></li><li><p>Falk <img alt="" src="https://tibiopedia.pl/images/static/npcs/falk.gif"></p></li><li><p>Fenbala <img alt="" src="https://tibiopedia.pl/images/static/npcs/fenbala.gif"></p></li><li><p>Frok, The Guard <img width:73px">Demonguard </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/falk.gif">Falk </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/fenbala.gif">Fenbala </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/frok,_the_guard.gif" style="height:48px; width:95px"></p></li><li><p>Grof, The Guard <img width:95px">Frok, The Guard </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/grof,_the_guard.gif" style="height:45px; width:109px"></p></li><li><p>Harkath Bloodblade <img width:109px">Grof, The Guard </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/harkath_bloodblade.gif" style="height:45px; width:131px"></p></li><li><p>Harsky <img width:131px">Harkath Bloodblade </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/harsky.gif" style="height:45px; width:47px"></p></li><li><p>Hemor, The Guard</p></li><li><p>Humnog, The Guard <img width:47px">Harsky </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/hemor,_the_guard.gif" style="height:48px; width:105px"></p></li><li><p>Jean Claude <img width:105px">Hemor, The Guard</p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/humnog,_the_guard.gif" style="height:54px; width:119px"> Humnog, The Guard </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/jean_claude.gif" style="height:50px; width:71px"></p></li><li><p>Kazzan <img alt="" src="https://tibiopedia.pl/images/static/npcs/kazzan.gif"></p></li><li><p>Kihil, The Guard <img width:71px">Jean Claude </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/kazzan.gif">Kazzan </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/kihil,_the_guard.gif" style="height:48px; width:91px"></p></li><li><p>Kulag, The Guard <img width:91px">Kihil, The Guard </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/kulag,_the_guard.gif" style="height:45px; width:114px"></p></li><li><p>Lugri <img alt="" src="https://tibiopedia.pl/images/static/npcs/lugri.gif"></p></li><li><p>Markwin <img alt="" src="https://tibiopedia.pl/images/static/npcs/markwin.gif"></p></li><li><p>Morun <img alt="" src="https://tibiopedia.pl/images/static/npcs/morun.gif"></p></li><li><p>Rachel <img alt="" src="https://tibiopedia.pl/images/static/npcs/rachel.gif"></p></li><li><p>Shauna <img width:114px">Kulag, The Guard </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/lugri.gif">Lugri </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/markwin.gif">Markwin </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/morun.gif">Morun </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/rachel.gif">Rachel </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/shauna.gif" style="height:45px; width:48px"></p></li><li><p>Stutch <img width:48px">Shauna </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/stutch.gif" style="height:45px; width:45px"></p></li><li><p>Sylvester <img width:45px">Stutch </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/sylvester.gif" style="height:50px; width:59px"></p></li><li><p>Tim, The Guard <img width:59px">Sylvester </p></li><li><p><img alt="" src="https://tibiopedia.pl/images/static/npcs/tim,_the_guard.gif" style="height:45px; width:104px"></p></li><li><p>Walter, The Guard <img width:104px">Tim, The Guard </p></li><li><p> <img alt="" src="https://tibiopedia.pl/images/static/npcs/walter,_the_guard.gif" style="height:45px; width:122px"></p></li></ul>width:122px"> Walter, The Guard</p></li></ul>