This happen at your schools?

Okay, so here at Webster there is a rule that if the professor is 10 mins late to class you can leave. Unless he/she has a doctrate, then you have to wait 15 mins.

Anyways, this had never happened to me before untill like 5 secs ago. We were all waiting for Human Rights to begin as usual, and then without realizing it, 15 mins had passed, so the girls in the back row were like, "Well, maybe if we get up and leave first, everyone else will just follow" so they did. And they did. The whole class just kinda filed out. I felt extremely odd.

Have any of you guys had this happen in classes before?