My favorite was two non-revs making it to the mile high club then taking a smoke afterwards, in the aft lav. I wasn't deadheading on the connection carrier, I was on mainline. Heard and smelled everything. The F/As were ****ed. When being confronted about it, numb nuts threatens the head F/A.
On the ground, numb nuts tries to sneak off with the rest of the pax despite being instructed to remain in place. Them Feds can move when they're ****ed and itching for action (an earlier flight had diverted into the airport thus FBI was already there). Sheer entertainment!