I had some great teachers in high school, Mr MacDonald, my social studies teacher in grade 12, really stands out though.
He used to have a funny habit of writing funny things his students said on the walls of his classroom, I'm up there a couple times. His late policy was cool too, you just had to have an excuse. It didn't have to be true, or even possible, you just had to tell him something. I told him I broke my leg coming up the stairs but I'm ok now...I was planting trees for Greenpeace, I was the only witness to a 14-car pileup, and my personal favourite, "The bell rang before I got here."
He asked the class something one day, I forget what, and picked a student, my friend Scott, to answer. Scott took a couple guesses but Mr Mac just kept shaking his head and hinting at the right answer until Scotty, frustrated, cried, "Throw me a freakin' bone here!" Mr Mac replied, "I did! You threw it back!"
I had an English teacher who used to say, "I before E except after C, we live in a weird society."