Still not as bad as the professor that got into my class the first day of classes and started writing something about welcome to history of this mas that, only to have the other professor walk in and say 'one of us is in the wrong place and it's either you or me' and asked the students what class was that.
@loveless ,from the beggining i thought you were gonna tell the story of how Ted mosby got into the wrong class and started teaching architecture even though he knew the students were there for economy 101.
I guess i watch too much TV
No he didn't let them ask questions because Barney told him not to. Something about showing them who's in charge? He only found out he was in the wrong room when the other professor came in. He even said that professor was in the wrong room.
I was a teaching assistant and showed up before the professor. Started handing out pages covered in equations and formulae, realized from the horrified looks that I was not in the advanced astrophysics class, but rather the first year literature class. Pretty sure I scarred some of them for life.
I guess i watch too much TV