Our duo (George and Harold) love pranking/making jokes about people. They either do this in real life or they write comics about it. Often I am not all too happy when pranks/jokes go far, but with George and Harold? I just couldn't be mad at them. Maybe it helps that they do try to save the world when that situation arises + quite often their pranks/jokes are funny and people seem to like it (well, OK, the children like it, the adults don't, but that is generally how it goes). Though I have to say the comic about the lunch ladies went a bit too far, at least for me.

Captain Underpants and the Invasion of the Incredibly Naughty Cafeteria Ladies from Outer Space (and the Subsequent Assault of the Equally-Evil Lunchroom Zombie Nerds): Collectors' Edition (2008)

Donny Shoemeyer's invention is called the Ping-Pong Serve-o-Matic as shown on the label on the machine. However, the sentences in the book call it the Electric Ping-Pong Ball Server. Miss Singerbrains – Miss Singerbrains is the librarian at Jerome Horwitz Elementary School who banned all but one of the books in the library and eventually closed down the library. Her name is a pun on saying she is "missing her brains." The Second Captain Underpants Collection/The Tra-La-Larious Captain Underpants (Books 5–7 & Super Diaper Baby; 2001–2003) Captain Underpants and the Invasion of the Incredibly Naughty Cafeteria Ladies From Outer Space: Color Edition". Barnes & Noble . Retrieved January 10, 2015.

The series has frequently been compared with the Horace Splattly series, [37] [38] [39] [40] [41] but not always positively. [42] International publishing [ edit ]Mr. Krupp punishes George and Harold by making them fill chalkboards with the sentence "I will never do anything which angers my handsome and charming principal, Mr. Krupp, ever, ever again." George and Harold later get revenge when they are made Principals for a Day, and they punish many teachers (and Melvin for his tattling) to write the following sentences on chalkboards: Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy Part 2: the Revenge of the Ridiculous Robo-Boogers (2018) One of the students seen at the Invention Convention is called Madison Mancini; Madison Mancini is Dav Pilkey's niece.