If you're in a dorm, I'd check up on the rules about pets. As much as it would suck to leave them behind, it would suck more to have them taken away or to get kicked out of your dorm for trying to hide them
That said, if your situation allows them, just buy a cage that will allow locks they can be kind of pricey imo, but if you're going for security than I wouldn't take chances on trying to make your own
exactly, my wife had her hamster poisoned by her school. she had left for the weekend and when she returned she found two notes, one said she had 24 hours to remove it and the 2nd said that they took care of the problem and her hamster was dead in its cage.
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