hartmann is funny but he tries too hard sometimes, its like ok i get the joke already!
hes am awesome teacher!(even though he still doesn't know my name) Keep doing what you are doing Hartmann!
i must say that he is the only teacher i know that should bother telling jokes... if he gets tired of teaching, one word.. COMEDIAN
funny guy, realizes the intellect level is not remarkably high, so he's very clear and straightforward