Here are a couple other embarrassing moments I just remembered.
Most of the time I don't bring my cellphone with me when I go to school, but often when I do I forget I even have it.
One day in middle school---8th grade, I believe---I went into my social studies class and had to work on an assignment. Suddenly I hear a strange cellphone ring from my binder. I panicked mentally, but let it continue ringing so it didn't look like mine. Unfortunately, it was one of those long ringtones that get louder as it rings. Kids began to giggle and whisper while subtly pointing, "[N/A]", it's [N/A], hehe...".
The teacher---an almost-monotonous-voiced old man with a dry sense of humor---remarked afterwards, "Well that was an interesting sound. It was like a cat... Probably from the other room."
The kids still snickered and whispered my name like idiots, but the teacher either couldn't hear them somehow or just didn't care. Right when I went to my next class I quickly shut off my phone. ^^;;
The next one is from the year before, in biology. I was extremely tired and couldn't keep my eyes open at all. We were watching a movie that I was interested in seeing, but like I said, I was way too tired to pay attention. I ended up falling into a lovely sleep... Then the teacher told a kid to wake me up. Being woken up got me extremely upset and I suddenly began to cry uncontrollably. Not aloud, but enough to be noticed. .///.;;
Now I remember one more embarrassing moment from that same year, in another social studies class. We were playing this game simply called "Map Games". Basically, the class is separated into teams, and each member of a team goes to one of the maps around the room. The teacher will call a city or geological feature and we'd try to find it on the map. The person who finds it has to call someone at their map out. At this round my A.D.D. was going crazy, and I sorta zoned out for a bit when we were supposed to find a city. A girl found it and called me out. I was still in my own little world and didn't hear her. She looked at me straight in the eyes with a serious expression and said,
"[N/A]. I called you out. Go sit down."
This shocked me so bad that I burst out crying. The class was freaking out and wondering what the hell was going on while I was trying to hold myself back together.
Honestly, those weren't the only times I broke down crying at school. I actually don't cry often at all, even at things I really should be upset about. Most of the time if I ever do start crying, it only lasts for around thirty seconds before I calm down. I guess things start to build up, and just a minor issue can spark a breakdown. It just sucks when it happens at school because I get tons of kids crowding around me...