Why Grad School is Like Anal Sex

Before you begin you think, can I do this? Do I want to do this? Will it be very hard? Will be be too hard? Will I have room for this? And then you start and you think oh this isn't too bad, I can totally do this. Then half way through you think, no way. I don't like it. I want to stop. It's just too painful...and then you get in a rhythm and you think oh I remember how to do this. I totally used to do this when I was in my 20's. So you suck it up and do work. Then you cum...I mean get a super satifying A. Wait no grad school is not like anal sex.