I have had many embarrassing moments, but this one takes the cake:
One day when I was in high school and had recently gotten my driver's license, I drove up to golf practice after school. A couple of blocks from the school, at the intersection of the town main street, I "california stopped", or inched through the stop sign. Unbeknownest to me, a police officer was behind me or nearby enough to begin to follow me. I didn't realize anything because on a one lane street, it's hard to tell if someone is following you or not. Also, I had my rear view mirror tilted waaayyy down, so it appeared to be just a regular white car. So then I turn to head up the hill to the golf course, and the police officer is still following me. Finally he gets sick of this and turns on his siren! This time I had my tape player turned way too loud, so I couldn't hear anything. So in the end, I ended up leading the police on a two mile slow speed car chase!
To make matters worse, I didn't realize what had happened until I pulled over to get my golf clubs out of the car! Also, this was the one time in my life i had driven without my driver's license, and when i stated my name, the officer heard it wrong, so it took so much longer to get out of there. I ended up getting a ticket for running a stop sign instead of a simple warning, but the worst was when everybody started talking about it the next day at school

Thankfully nothing like that has ever happened to me again!