I was on holiday with my wife at her parents' holiday home. We all went to a small coastal restaurant one evening and I ended up in the wrong bathroom (had a bit to drink).

In the lady's bathroom there was a little free dispenser of female condoms and I (still thinking it's a dude's bathroom) thought it was pretty fucking weird and big looking condoms that were pink in colour. So I picked up a couple and wanted to put it in my pocket to show my wife later.

With female condoms in hand, a couple of young girls entered. Cue me with female condoms in my hand and looking awkwardly at the girls. My ace card was that at that time I had really long hair and didn't sport a beard, so I just automatically assumed this persona of a trans person in my head and went with it, non-nonchalantly putting it in my pocket and heading out.