A comic about why witches are stereotyped as riding broom:
Apparently once upon a time there was an ointment one could rub on a broom - that was most popular amongst herbalists (such as many witches) - that was a hallucinogenic. One would ride the broom for masturbating purposes and the ointment would be absorbed through the mucus membrane of the vagina and give the rider a sensation of flying.
Now you will never look at Quidditch the same way again.
Remember Garfield Minus Garfield? In which Garfield was removed from Garfield strips, leaving only his owner Jon as a weird, lonely recluse who talks to himself? Minus Jon Plus Jon takes that one step further, but removing Garfield’s Jon Arbuckle and replaces him with Jon Osterman, AKA Dr. Manhattan from Watchmen.