Pooping my pants in highschool

So this was back in HS and I was sitting there in my history class, 10th grade. I had really had to shit for a while now, but I didn't get a chance to go during my previous class because the teacher was a total bitch, and well, this one was too. So I was just kind of squirming uncomfortably the whole time and eventually I realised I was probably not going to make it. I decided to ask the teacher to use the bathroom, and unsurprisingly she said it could wait until the lecture was over. I tried telling her it really couldn't wait, but naturally she didn't believe me. Now, I had already shit myself at this school more than once, but I had yet to get a real reputation for it because so few people knew.
So anyways the lecture went on and on and on, and I could just feel my resolve slipping. I was sweating and my stomach was crying out for me to just let go. I kept fidgeting around uncomfortably, and at one point I ended up making the mistake of lifting my butt too high up off the seat, and immediately I was totally screwed. A big load of mushy shit just started pushing itself out into my panties, and I couldn't even really do anything about it. I could feel it filling up the space between my buttcheeks and even starting to spread, and I just kind of awkwardly stayed in that position the whole time with my ass up above the seat because the relief combined with the shock just left me so clueless on what to do. Once it all came out I was just kinda terrified for a moment, and I shakily asked again to use the bathroom. She said no again, and so I ended up just biting the bullet and telling her I pooped my panties and needed to go clean up. It was probably not the best thing to do, because now the whole class knew...
Anyway, I got to the bathroom and the teacher went and had the school contact my parents to see about bringing me new panties, but I just ended up going home. And that's why everyone started calling me Stinky.
From then on, people would ask me if I needed diapers all the time, or cover their noses when I walked by, but I guess I didn't really mind it that much. To be honest, I should have just started pissing and shitting myself at school on purpose. It's not like it would have made much difference in how I was treated, and I had many more accidents like that throughout my time there.