In high school we used to smuggle in booze, wine, and beer. Didn't really need to disguise it, just had to get it onto the campus without the staff finding out. Wasn't all that hard with the small bottles, but larger amounts, that sometimes took a little creativity. We managed, and occasionally we got busted, usually after we'd drank the day's imports. Never stopped us from doing it again. Not just alchohol, either; we did the same thing with pot and fireworks. Good times, good times... 
