OK, time for a REALLY funny story.
I must have been about 10 or 11, and my sister was maybe 13. We were at a store (K-Mart, I think) and she found some shorts she really liked that had little smilie faces on them, and so she wanted to buy them. A few days later we went to Wal-Mart (I remember that, because she wanted to wear the shorts because they looked like the Wal-Mart Smilie face) and so she wore them to the store. As shorts.
If you're wondering, yes, they were indeed boxer-shorts. She would not believe anyone when they told her they were actually guys underwear. Them being a bit snugger than normal shorts didn't seem to bother her. I never saw her wear them since.
True story.
H-D