I take care of a platonic friends apartment while he is abroad every summer (water plants, mail) and have gotten in the habit of pranking him every year. Past pranks are things like hiding clean, new dogs bones behind cushions in his couch and bed (he hates dogs especially mine), leaving cans of dog food in his pantry, I bought a weird creepy banana-man dog from amazing and his it under the cover of his bed. Bought some prank matchbooks and mixed in with what he has….really silly stuff. He pretends to hate it butt he really loves it because he tells everyone and most of the things I have done over the years are now on a shelf, not tossed.