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.
Laryngitis - S1-E18
Rachel Berry: I am like Tinkerbell, Finn. I need applause to live.
Laryngitis - S1-E18
Noah Puckerman: You've got to admit, I'm easy on the eyes.
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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