During the seventh grade I had a history teacher (Mr. G) that wouldn't really let students go to the bathroom after he put large restrictions on bathroom usage. I was kind of pissed but there wasn't anything that I could do about it. So one day during class I just really, REALLY had to fart. I didn't want to do it in class so I asked Mr. G if I could do it in the bathroom but he wouldn't let me. I asked him again but he just told me to sit down.

Little old me was pretty mad that my teacher was putting restrictions on my bladder. I was so mad that I did as he told me to. However, before I did, I asked him one more time and he still dismissed me so I went to my desk and then I farted.

It. Was. Glorious. It was the most gaseous and loudest fart I had ever let out and after I farted people had to cover their noses with their shirts because it was SO SMELLY. Even Mr. G did and everyone in the room was so disgusted by what just transpired. Afterwards, with a smirk on my face, I turned to Mr. G and asked him again if I could go to the bathroom. He then blushed and said I could.

And after that day during next period he lifted the restrictions.

TL;DR: In seventh grade I had a history teacher that never let anyone went to the bathroom. So I farted one of the worst, gaseous farts I ever had in my life and he was forced to change his mind.