[quote=KabenSaal]
But the food-fight was awesome, and Ozpin cooled Glenda's jets. Without that, she was going to explode.
[/quote]

This. Glynda was about to rip them all a new one until Ozpin interceded. Besides, I'd think even the other students would be interested in keeping people from using stuff that would inhibit their fighting ability, since this is a combat school and all. They're not here to teach you drunken boxing