Sadly correct and agree.
My favourite was a bad day in the office, staff needed lightening up. I took the hole punches from all over the ofice into the single user only ladies loo. Then I took the nozzle on the hand dryer, turned it itowards the ceiling and filled it with the hole punches.
What I didn't realise was the lady office manager would go it, sit on the loo to relieve herself, then press the close-by hand dryer button to cover the noise of her bodily functions...
There was a scream, followed by her running down the hall, yelling expletives, a cloud of hole punches following her down the hall and informing everyone they were stuck everywhere on her body including her nether regions. Not much work got done that afternoon, but everyone went home happy. Well, almost everyone....