I was living in San Francisco at the time I was in middle school. It was also in middle school where I first discovered (by accident of course) that I enjoyed pooping in my pants.
I used to walk home after school every day, get home before 3:00, and usually it would be 5:00 before my parents would get home, sometimes later.
My middle school’s bathrooms were pretty disgusting…most of the stalls didn’t have doors, and those that did, wouldn’t lock. Lots of the walls had graffitti on them and by the end of a school day, the toilets were nasty because the janitors would only clean them after school let out and before the next day.
So I would consistently find myself holding my poo for my 10-15 minute walk home each day. When I discovered I enjoyed pooping my pants, it wasn’t that far afterwards that I started saving up old briefs that needed replacing. My mom would buy me more, and I’d keep a stash under my bed. One day, I think in 7th grade, I decided to wear one of those old pairs to school, and, try to fill them after school was over but before walking home, if i felt that I was going to have a firm poop coming.
I remember that afternoon during classes feeling a good load coming on, and I could wait for the sixth period bell to ring. I left my last class and headed to the bathroom on the third floor near where my locker was at. I stood at one of the urinals and emptied my bladder of pee (never have been a fan of peeing my pants). After that was done, I wanted to make sure the poop was going to be firm before I went through with it. Since there were other kids in the bathroom I went into one of the stalls that had a door (but did not lock). I reached around and confirmed I had a firm poop coming. By now there was no one at the urinals so I went back to there and let out a little more pee as I relaxed, pushed, and stood there in astonishment as I deposited a pretty large firm load into the seat of my briefs.
Once I was done, I left the bathroom and went to my locker to get a couple of things and then left school. During the time, I walked down the hallway near classmates, most of whom probably had no clue that I had a big load in my pants. Left the building and walked home, and cleaned up when I got there.
I ended up doing that several more times, though never during class or before the last period had ended. I don’t think anyone ever knew, and if they did I never found out they knew. With the bathrooms being so nasty, I have to imagine there were at least a few others that did the same thing…