When a mundane conversation goes bad. You're winding up a boring conversation, and throw in one last thing in there. And that one last thing was praise for Adolf Hitler, or a plan to kill the Mayor, or an offhand comment that you pick your nose, when you had been talking about options for where to eat dinner or something. Inter results 2016 Bonus points for the listener asking with a horrified tone "What was that last one again?" and the last harmless option before the horrifying one being repeated instead. A more subtle trick is when the Squick is revealed by a change in the camera shot.