I did not think this was a game where a dialogue option could get you killed, normally when I see those they are jokes added in by mods. So I kissed the Mindflayer thinking he would be a chaotic evil party member, or maybe I just have to fight him after being weakened a little, or maybe he would actually reward me with some rare item. And no to my surprise I just fell over dead, well lesson learned, if a dialogue option looks suicidally stupid and would only be taken by someone too dumb to live, the game operates on the principle of fuck around and find out.