...when you're playing poker at someone's house and music choice lies with you, and you pick Pet Sounds, and the person next to you says: "Oh for fuck's sake. I hate this sort of thing. Do you have any Nickelback?".
...when you're around a girl talking to an ugly boy who is asking him if they've ever met before, because she recalls his face, and he says to her "I get asked this all the time, and I find myself just thinking - 'I probably pulled you at some club somewhere, but I'll have been stoned to fuck, so how would I remember?'" and being deadly serious.
Now you go.