Other mistake: When Eric and the other security guard discover Mr. Feeny entering the school, Feeny expresses that Eric snuck up on him. Eric was five feet away from Feeny when he first saw him, and was also talking loudly when making his approach towards him. There's no way Feeny couldn't have heard him.
Boy Meets World (1993)
1 other mistake in Security Guy - chronological order
Starring: William Daniels, Rider Strong, Ben Savage, Betsy Randle
A Long Walk To Pittsburgh (2) - S4-E17
Character mistake: In this episode Cory says that Topanga gave him his first kiss at age 13, but their first kiss actually happened when they were 11, in the 6th grade. (Season 1 - Episode 7 Cory's Alternative Friends).
More quotes from Boy Meets World
A Long Walk To Pittsburgh (2) - S4-E17
Trivia: Topanga is talking to Cory and she says, "My Aunt Prudence wouldn't even know who Romeo and Juliet are!" When her Aunt Prudence knocks on the door, she is played by actress Olivia Hussey, who played Juliet, in the 1968 film Romeo and Juliet, also starring Leonard Whiting as Romeo.
Question: Topanga said in one episode that she has a weird middle name, did she ever say what it is?
Answer: Topanga's middle name is never specified. Considering her sister's name is Nebula Stop-the-war Lawrence, Topanga's is probably something equally unusual.