I used to take important equipment home (that i could fit in my pocket) and then "find it" the next day when I came in for my next shift.
I have that fast food lifestyle, but taking parts from the mixers and leaving them to have to mix shit by hand was always pleasant.
I also helped get a kid fired (when I was a manager) by having another employee call and say that the kid in question mooned her (playing the part of a customer) and her 'family' as she pumped gas (the fast food place had a gas station connected to it). The moon in question did actually take place, but nobody was around, and the kid was such a liar and thief it was the last straw.
He was homeless at the time, so he might be in jail now. Good times, good times.