I believe this happened in 5th grade, then I was around 11 years of age. I went to a cheap school, and all cheap schools had the "Walk-A-Thon."

The Walk-A-Thon was a 1 hour activity, where you got sponsored to run a certain amount of laps. The more laps, the more money. And, well, you earn money, you earn *cough* crappy *cough* prizes.

They had a little station set up to where you could fill up your water bottle with water, right next to the 'D.J.' table where they played upbeat music, a.k.a terrifying tunes.

It was the last day of school that year, and I couldn't have been more ready. For breakfast I had drank two glasses of good 'ol OJ, and since it was near 90 degrees that day, I had filled up my water bottle during the school day.

Then the 'Thon began, and it was going alright. 20 minutes in, I had already gotten 3-4 refills of water. My bladder was sending dull warnings, but I shrugged it off. We weren't allowed to use the restrooms or stop running for 40 more minutes, anyway.

Now, which pebble was responsible for that rule? I was running with a group of friends, and after my 6th bottle I was falling behind due to my bladder.

I could feel my bulge and it was a horrible pinching, but I was running pretty good. I could barely hold on, though, because I was bursting!

Around the 30 minute mark, I could barely hold my body straight. I was that close to having my hand shoved between my crotch, and I was leaking a little.

I had managed to hold on until the 50 minute mark, where I let free. It was so embarrassing!