9th grade P.E. we had to run the track 3 of the 5 days in the school week, one day we had a substitute and she decided to run with us, I noticed she wasn't looking and jumped into the track shed off the side of the track, laid down, fell asleep, awoke to the doors being closed and locked about 10 minutes later.....I was locked in for about 25 more minutes until my friend finally found the girl with the keys...