What's your most embarrassing story?
Haha: here's mine.
While I was walking to school one day, cars kept honking their horns all down the street I was walking to school. I was wondering what was going on because the honking didn't seem to cease and there was nobody driving badly or anything. Then, when I got into school I sat down in front of the boy I had liked and he asked me what the deal with the sign was. Apparently, my little brother had taped a "Honk if you're horny!" sign on my back just before I started walking to school.
Oh man! siblings... 
My, what a story! Boys, huh. I hope you got him back for it? I would! 
My embarrassing stories are usually related to my inability to remember where we have parked the car and sometimes walking up to a car that looks similar to ours. Seriously, I need to paint our car with pink polka dots or something, to make it stand out! 
A polka dot car! That's a great idea. Just make sure not to park you car amongst dalmatians LOL. You won't be able to find it anyway.
When I am still a child, I and my friends were joking about one of my teacher. We were laughing happily, not knowing that the teacher we were talking about was behind us!
That is a funny story for sure.
My most embarrassing moment was when I was potty training my son. We were at my sister in laws for Christmas and he had to go. I opened the bathroom door only to see her father in law sitting on the toilet! Boy was my face red.
Once I had went for a Job interview at a MNC and after reaching their office I went to toilet to freshen up. When I opened the tap all of a sudden water fell on my trouser which made it look as if I had pissed in my pants! 
I went to work with my shirt backwards! Everybody noticed except for me so I was so embarassed. I had to go change and they teased me all day about it.
Lol about the sign, what a little turd i hope you got him back really well for that one!
My story is that I was having a tough time paying my bills and I had to get rid of my car. They came to pick it up, and it was pretty embarassing. It was a long time ago, but I will never forget it.
I was in a lazy mood and my car ran out of gas. I was stuck there in the middle of traffic. Luckily, a police officer came and pushed my car somewhere safe. I was able to get some gas and drive home, so I was happy.