Quote Originally Posted by mono repin
If you don't get caught while on probation you should be fine, unless of coarse you get busted for dealing. If you are smart, you won't get busted in the dorms. If your hallway reeks of weed, then the RA is going to have to do something, because he/she is gonna get heat from their boss. In general no one really cares about anything, saving face seems to be more important than actually having a drug free campus. Don't put authority figures in bad positions (ie, the smelly hallway) and you will be alright.
This is my experience as well. They know it's a college and kids are going to do drugs, but they can't look soft on drugs, so they'll bust you if you make it too obvious. However if you take precautions to make sure you don't make any smell and don't go around carrying bongs through the hall, you should be fine. The RA's (residential advisors) aren't stupid, they're students like you and me and they can probably pick out who the stoners are, but for the most part if they don't see it/smell it, they won't do anything.