Ah yes. My maths teacher made a error in a trigonometrical graph. He wiped the graph off with his forefinger and said: "Lucky for you guys, black is my favorite colour" . And with that sentence, he licked his forefinger with a "mmhmm" sound effect.
Now that i think about it, that scared me more than the fact of making me laugh >.>
♦ - why reason with the world when you can make your own rules? - ♦