<human>: Can you summarize the given text in a few sentences?

So pretty much what happened was:

My friend always gets me food for break (in high school), why? No idea. Just a thing that started happening, anyway. He bought me milk and a doughnut (donut for US) and I got the milk and put it where my fly should be and I went to my band room like that. After getting there I made everyone laugh and then I started laughing and the milk carton went down my leg. Everyone laughed more while I was hoping around the room, kicking my other leg trying to get this milk carton out. I had my back to the door and while I was fucking around my teacher came in and as he did the milk slipped out. I picked it up and turned to leave the room and then I saw him looking quite confused. He asked me "What are you doing?" to which I held up the carton of milk and replied "My water got stuck somehow" and swiftly left the room knowing I had fucked up and looked like a dumbass...
<bot>: A milk carton slipped down my leg and I tried to get it out in a 'awkward' way on purpose while my teacher had walked into the room and stood there watching me.