A long time ago when I were t'schoolboy, I had to do work experience in a vehicle parts department which had a fledgling computer system.
Whilst there I loitered around with some of the younger mechanics in my lunch hour who informed me they regularly checked the cars for nickable items and always raided the coin trays etc., - apparently they made a small fortune from it.
Hand on heart, I never did anything like that, nor would I; but it's certainly not a new problem.
"Oooh, your kisses, sweeter than honey, and guess what? So is my money." - Benjamin Franklin