I've got one!
When I went off to uni my now ex ended up getting with someone else, and essentially ghosted me until I confronted him about why he was acting weird. Spineless twit sobbing down the phone he "couldn't do long distance" when he was just angling a go with a girl he was working with.
So I travelled home and got my dad to drive me over to his flat to collect my stuff- pre-agreed, we stopped at his work so I could collect his key. He was packing to move house and had thoughtfully put my things in a box. Except when I opened it most of my stuff was missing.
So I went through all the other boxes, retrieved my things, thoughtfully swapped his PS2 for my broken one, sat down at his PC and wiped the entire thing. Photos, games, every single file I could delete. Took about half an hour and my dad was getting aggy but it was the most satisfying feeling to go back to his work, drop the key off, and take my things home.
He messaged me a couple of days later asking if I'd gone on his PC as he couldn't find any of his stuff on it. Moron.