When I was a senior in high school, my Dad owned a service station, in which I worked every day. Most folks woudln't believe the things women leave behind in public restrooms, but one day I found a rather large size brassiere, and it even appeared to be pretty clean. At the time, my best friend had graduated the year before and was in the process of moving from his parents' home to an apartment. It so happened that he and a younger brother shared the same car. So one day he stopped by the service station with a load of his clothing in the back seat of the car. When he wasn't looking, I slipped that bra into the back seat under his clothes.
The next day he came to tell me that he fround a bra in the back seat of the car, and as a joke, and assuming it belonged to his mother or younger sister, he had walked into the house where his parents, sister, and brother were watching a TV program and, holding out the bra, asked his brother, "What girl did you take this off of?" He said when they discovered that bra was far too large for his mother or sister, he was sure his younger brother had gotten it somewhere and he was sorry he'd carried it into the house like that. I think both brothers always thought the other one had acquired it, and the parents wondered which one had done it.
And I never told anyone where it came from.