Zorro Saves The Day At the University of Michigan

It happened during a chemistry lecture at the University of Michigan when a group of students staged a robbery with a "bandit" stealing a woman's purse and said "nobody can stop me."  Then from the back of the room accompanied by a mariachi band appears Zorro.

The instructor had no idea this was about to happen.  He played along though, had fun with it and added his own two cents too.