When I was a lube tech at a local dealership, I usually only locked my box at night before I'd leave. Never had a problem. Only time someone went into my box when I wasn't there, they were looking for something. I was rushed out of the shop to pick up a customer's vehicle. MUST HURRY they said, so, off I went. When I returned, my box... all the drawers had been ransacked. Nothing missing, but definately someone was looking for something. I tried to tell myself, maybe they were looking to borrow a tool, but as the lube tech, I had the least tools. Then all of a sudden every car that came in for an oil change for the next few days, had either a wallet or cash sitting in the center console. Hmmmmm.... I thought everything was going great, but to come back to this was a real bummer. I think they thought I had taken some money, but I didn't. It really hurt. It took over 2 weeks for the "tests" to stop. They leave the cars unlocked all day with the keys in the ignition outside, so it could have been anyone. But nobody ever asked me or anything. Then they suspected the car wash guy and he kept finding money under the seats. It really hurt at the time, but I got over it. Just goes to show you, no matter what you think, people aren't always as friendly as they seem.