Community, Season 6

Jeff:
Everyone's so charmed by him because he's a violent criminal. But he's also a petty sociopath, and the more I try to point that out, the pettier I look.

Britta:
Weren't you the one that championed this program? Shouldn't have worn that petard if you didn't want to be hoisted by it.

Jeff:
What do you think the expression "hoisted by your own petard" is referencing?

Britta:
I guess I just assume that in the old days a petard was a special outfit like a leotard with a lot of fancy buckles and loops on it. And that rich people would wear them when they were feeling especially smug. But then poor people could tie a rope to one of the loops and hoist them up a pole and then let them dangle there as punishment for being cocky.

Jeff:
Never look it up. Your explanation is way better. But also the next time a friend comes by with their problems, maybe lay off the "I told you so"s.

Britta:
Jeff, we're having a Britta party here. Could you be a little bit less of a buzz kill?