I had a guy helping me once; to save on gas, he would meet me at the shop, and we would continue to the distand jobsits in my truck.
Well, one day the traffic was rather demanding, and I had little time to 'supervise' the helper as we drove out to the site. About halfway there, I heard the crackle of a food package as he crumpled the now-empty wrapper and tossed it into the waste bin.
I was puzzled by his next remark. "John, that beef jerky was pretty stale." He had been eating MY stuff in the truck .... in this case, the 'puparoni' I carried to treat the jobsite dogs.
When I stopped laughing, and explained this to him, he said "That's messed up," as if it were MY fault. I pointed out that he really had no business eating what he thought was my lunch.