I've had GMs complain to me multiple times about their "murderhobo" players. The general scenario is, the GM puts them in a faction's dungeon, the PCs go through some faction enemies, and at the end, they were somehow expected to negotiate instead of fight. And the GM will tell me, "I even had the NPC tell them not to attack and that he wanted to negotiate, but the PCs wouldn't listen. What's their problem?" because the GM failed to understand how player mindset works.