It's a popular urban legend that Hitler had only one testicle. Adventures in the Rifle Brigade: Operation: Bollock implies, with Garth Ennis' usual combination of rude humor and bold fantasy, that this missing testicle was imbued with occult powers, as if a concentration of Hitler's evil. Hitler himself has little to do with the story, but his influence does, er, hang over it.
T Campbell has written quite a few online comics series and selected work for Marvel, Archie and Tokyopop. His longest-running works are Fans, Penny and Aggie-- and his current project with co-writer Phil Kahn, Guilded Age.