I haven't really experience any bad incidents myself. Just make sure that if you really want to get in something, you get there early because lines grow fast.
And then the obvious things, like don't leave your money lying around, or carry too much cash with you, because I've heard of people losing lots before.
There's no outside grassy area anymore with the new in city location, but there's a McDonalds really close by. That's where most people went last year. Otherwise I'd look into seeing what food places are on Hillsborough Street. Not stopping to eat/drink gets people in trouble sometimes. Passing out and stuff.