Dolomite, Apple Slices, and a Mystery Woman - S1-E15
Continuity mistake: When Sheldon is doing laundry, the two items in/on the adjacent machine to the one he is throwing clothes in, keeps changing position between all the cuts of Sheldon. (00:13:10)
Dolomite, Apple Slices, and a Mystery Woman - S1-E15
Continuity mistake: When Sheldon is talking to the girl in the library, her left arm is constantly changing position depending on the camera angle. (00:01:30)
Dolomite, Apple Slices, and a Mystery Woman - S1-E15
Continuity mistake: When talking with Tam in the library, the way Sheldon holds his floppy disk keeps changing. Note his hand in relation to the hole in the middle. (00:00:50)
Answer: Some people just have a dislike for someone that can't be explained. Could be as simple as the way he's dressed.