<human>: So I was in class and while we were having a math lesson I suddenly got more bored than a prostitute over at a gay man's house and decided to pull up TIFU on my phone. We were talking about some Algabruh bullshit and I was reading a story about someone with a decease getting a boner  while he passed out and then being carried by a fireman. I broke out into a hysterical laughter that can only be described as a sound that a hyena would make while orgasming and being tickled at the same time. People started to look and stare at me and my teacher stopped talking. I had headphones on was also listening to Bohemian Rhapsody on near full blast and since they're noise cancelling I didn't realize people could hear the music and my laughter. I was still looking at the story and almost crying with laughter. I looked up with tears in my eyes and saw people staring at me like I was more insane than Amanda Bynes having sex with Rosie O Donnel. The teacher asked me if I was okay and if I was having personal problems in my life and I shook my head and looked down and was humiliated. I later heard people whispering to each other and asking if I was retarded. Sigh. Not going back to school any time soon. 

I fucked up, Reddit.

Can you give me a shortened version of the text?
<bot>: Read a funny TIFU and laughed harder than Dane Cook when he listens to his own jokes, people looked at me like I'm crazy