I don't think anything especially embarrassing happened to me... On my first day of secondary school I lost my glasses and I was crying my eyes out, the year head took me round all the classrooms I'd been in to see if it had been left in any of them and obviously lessons were going on and there was this sobbing first year sheepishly standing in the doorway; so anyway we didn't find them anywhere and so the year head put a message in the school bulletin asking if anyone found them, could they hand them in to the office? So there's no name on it, but of course because I'd traipsed around school all afternoon into so many different lessons, lots of people knew who I was even if they didn't know my name, so I became a bit of a running joke for a while because every day, every form teacher would read out this bulletin and nobody ever found my glasses...
And do you know why nobody ever found them? Because they were in my PE bag, and I found them two days later when I took stuff out of the bag to put it in the washing basket (I was upset and lazy, idk) and I was too ashamed to tell anyone that I'd found them in my gym bag so I just didn't say anything and eventually it stopped being put in the bulletin, about two months later.
It wasn't really that embarrassing because people forgot about it and I got my glasses back but still... hahahahahaha I'm such a loser