My teachers let me down badly. They completely failed to indicate how racist numbers can be. So now I'm stuck with this white supremacist idea that 1+1=2 and everything that follows from that.
English teacher in high school used to cuss kids out for being noisy in class and if that didn't work, he'd throw the blackboard eraser at us. I was on the receiving end of the eraser and I wasn't the one making noise.