I guess we can't talk about our ongoing illegal behavior. (See "You Are Under Arrest" below.)
Maybe we can talk about the best pranks we've ever pulled, or someone we know has pulled?
When they were in high school, my dad and some of his friends possessed a life-like human dummy, used originally for first-aid practice. It figured in a lot of pranks they did.
He said that the last time they saw it was the night they dressed it up, carried it up the back of a drive-in movie screen, and rolled it over the screen while the movie was showing.
My dad later became a judge, which just proves that you can always go straight. If you have to.
What is your best prank?
(Legal, of course.)