Normally I'd say good idea just for teh lulz, unless they're being indirect because YOU are the "other party".
Pouring maple syrup into the driver's seat of your obnoxious neighbor's/roommate's/coworker's/fellow student's car when they aren't around.
"I wasn't counting cards, I was cheating."
"Ugh. you give me hives."
"It's Tee-revor time!!!"