According to my boys, the Harry Potter series runs thusly:
Book One: Harry Potter Pees in His Pants
Book Two: Harry Potter Pees in the Great Hall
Book Three: Harry Potter Pukes on His Friends
Book Four: Harry Potter Poops in His Pants
Book Five: Harry Potter Potty Trains
Book Six: Harry Potter Goes to College
Book Seven: [we don’t know]
NaptimeWriting 
So funny. You should send this in to Mcsweeneys.
The Holy Grail of publishing? Pshaw.
I love that these kids think that after really mastering bodily fluids, you go to college. And then who knows.
So awesome.
Smart boys!
They’re clearly headed to college early. As soon as they stop puking on their friends, it would seem.