My most embarrassing moment was at camp when I was young. It stayed with me for a very long time.
So it was in like one of those 2 days/1 night camping trips, which I won't disclose the name of that camp. There only were 3 girls other than me and like 10 or so boys. (Spoilers, I didn't manage to get along with anyone.)
Now, on the first day, it was embarrassing enough that I was the only one that didn't know how to swim when we went to do so. (I was made to watch the others have fun without me, the instructors all left with the other kids btw)
The most embarrassing part though. (I'm going to regret this.) At night, we slept in like a one room cabin and had to sleep on some inflatable beds or whatever it's called. Anyway, the instructors told like a story of how children go missing at night because there is like a monster in the woods that eats them... I couldn't sleep afterwards. I had to pee too. The only toilets were outside where the woods were. Inside the cabin was really dark and I was really scared... So I peed myself.
When they woke me up, they had like every kids walk out and they started telling me that they would report me to my parents, which made me terrified. I had to keep the pants that I peed myself on me all the way to my house for the trip back. I got called names by the other kids.
That being said, I shut myself in my room when I got back and that was the worst summer of my life.
(I have some other embarrassing moments but that one is the one that I feel like sharing.)
Oh! I never EVER went camping ever again!