Continuity mistake: During Season 2, Episode 9 (Special Education), just as Blaine is singing "Hey soul sister, I don't wanna miss." for the last time, he is several feet in front of the other Warblers. But during the next shot, as he is singing ".a single thing you do.", he's right in front of them. So he jumped back several feet between two shots.
Glee (2009)
Episode list - season 4
More mistakes in Glee
Laryngitis - S1-E18
Sue Slyvester: See, that's the problem with your generation, you're obsessed with labels. So what if you like show tunes, it doesn't mean you're gay. It just means you're awful.
Trivia: At various times throughout the show you may notice Chris Colfer has a large red scar on the left side of his neck running from about half way on the side to the back of his visible lower hairline. He had surgery when he was eight to remove an infected lymph gland. It is most noticeable when singing "I Wanna Hold Your Hand" in "Grilled Cheesus" (00:28:05-00:28:15) and numerous times "Candles" on "Original Songs" (00:28:10, 00:28:20, 00:28:55 & 00:29:05-Most Noticeable). (00:29:05)
Question: Why don't any of the bullies ever get in trouble for throwing slushies at the members of the Glee club?
Answer: The show is purposefully stylized and over the top. It is not designed to be an accurate, realistic representation of American high school. The idea that the glee club is so unpopular other students can literally throw garbage at them with impunity is an over-exaggeration of how glee club is considered "un-cool" compared to things like football. However, there is a second way of looking at it. The audience is simply never shown anyone getting into any trouble for throwing slushies. Just because we don't see it doesn't mean it never happened.
BaconIsMyBFF