Killer Asteroids, Oklahoma, and a Frizzy Hair Machine - S1-E16
Continuity mistake: When Sheldon grabs the school intercom, the principal has a piece of paper folded up out of the folder in his lap. When the shot changes, this piece of paper has disappeared as it should be visible in both shots. (00:04:00)
Killer Asteroids, Oklahoma, and a Frizzy Hair Machine - S1-E16
Continuity mistake: At dinner, Missy says her day was fine until she learnt they can't afford cable. When she does, she has her fork over her green side bowl. When the shot changes, her fork is now over her main plate. (00:05:10)
Answer: Some people just have a dislike for someone that can't be explained. Could be as simple as the way he's dressed.