<p>Get renter’s insurance. It’s really cheap, at least through USAA, and it covers stuff that gets stolen in your dorm or damage to the building. In any case, your roommate probably won’t steal your stuff, except for maybe really small things if he’s a dick. Just lock your door, and you shouldn’t be worried.</p>
<p>My dd’s roommate had a cable that locked her computer to the desk. The roommate had friends who would come in and eat my dd’s special peanut butter that she bought from the food co-op and hide her hair and toothbrush in the freezer. My dd solved the problem by becoming an RA after that - now nobody is in her room that she doesn’t invite in and former roomie’s friends are never invited in.</p>