Re: My college build.
Luckily my campus requires all bikes (motorized or not) to be registered with the school. Each is assigned a serial specific to the owner, which discourages student theft. However, I have tungsten lock as well for the times I'm less sure.
As far as having a sketchy campus... A low-profile bike is your best bet. the less pizazz the better. People are nefarious though, and if they want something badly enough....
Only gamble with what you are willing to lose.