In celebration of National Teacher Day, mental_floss has a look at celebrities with a teaching background. You'd be surprised at who headed a classroom before they got the opportunity to do something easier like playing in movies or headlining concert arenas or running a country. For example:
9. Mr. T
It was hard for Chicago students to be fools when it came to gym class in the mid-1970s. You'd pay attention if Mr. T told you to do jumping jacks, wouldn't you?
10. Sylvester Stallone
Did you know you were seeing a matchup of tough-guy teachers when you watched Rocky III? When Sly was attending the American College in Switzerland during the 1960s, he worked as a gym teacher to earn extra spending money.
Of course, the examples were selected because of the picture that make it easy to show both of them. Check out the rest of the list at mental_floss. Link