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.
Kurt: Or maybe I just need more candles...
Blaine: Oh god no, no more candles!
Brittany Pierce: When I pulled my hamstring, I went to a misogynist.
Kurt Kummel: You busted my window!
Mercedes Jones: Well, you busted my heart.
Sue Sylvester: You think this is hard? I'm passing a gallstone as we speak. That's hard!
April Rhodes: I'm going on a fistful of horse tranquilizers. I can't feel my lips.
Rachel Berry: We're going to give these kids what they want.
Kurt Hummel: Blood?
Rachel Berry: Better. Sex!
Kurt Hummel: One day, I will own you all!
Sue Sylvester: You think this is hard? Try auditioning for Baywatch and being told they're going in a different direction. That's hard!
Laryngitis - S1-E18
Rachel Berry: I am like Tinkerbell, Finn. I need applause to live.
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.
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