I was just in the middle of English class. It was incredibly boring and nothing was happening. About three quarters into class, I remembered a doodle I hadn't finished, so I quietly took it out and started drawing while the teacher wasn't looking.
It was going well until the teacher came up behind me, looked at the drawing (it was of Fox McCloud), and said out loud: "So this entire class, you've been drawing a cat creature?" The entire class heard her and of course I was embarressed. Everyone was looking at me and some were quietly laughing. I didn't get in any trouble for it but after class, everyone started slagging me about it, with some people commenting on how I was a furry.

I wasn't offended by anyone, but that was one of the most embarrassing things that ever happened to me in class. I'm never doodling in class ever again!