Today in class we were talking about AIDS being spread orally if you have cuts in your mouth.. and this one guy says "Well good thing I had my braces taken out then" and then he's like "OH SHIT WAIT THATS NOT WHAT I MEAN" and the teacher is looking at him like "no fucking way" and the class is laughing miserably. Best part was when the teacher said the bull sperm for the experiment was coming in at noon, I told him "just in time for your lunch!"
Once someone did
2x
- x
-------
2
in math class.. he crossed out the x's and got 2. -_-