College professors, in my experience, are surprisingly lazy.
And how would you know little boy? Do you spend all of your time around an academic department carefully observing the working environment? Have you ever marked any papers yourself? Do you have any idea what an absolute fycking nightmare of a hassle it is?
The worst is grading essay papers which basically suck, but once in awhile say something vaguely on point. One has to work hard to figure out how much above zero the detritus should fairly receive. As one who has found oneself engaged in such a grading task, it is indeed hell.