Not to reply for Kathleen, but since she and I were saying the same things and live in the same town, I think I'm qualified to answer this.

I don't go to the university or live anywhere near it. I work in the middle of downtown, and we have a park directly across the street from my office. 99% of the people in the park are people from the surrounding office buildings getting some fresh air. The other 1% are freaks who enjoy doing strange things to get reactions out of the people who are trying to get fresh air. I don't know if they're college students or not... I haven't exactly interviewed them. In fact, I do my best to completely ignore them, because they're probably just looking to get a rise out of someone (I'm sorry, that was a really bad pun and unintentional). I don't worry about it, though, because I practice smart behaviour (always walking with someone else, even in the daytime, etc.) and I know that all of the companies keep a good eye on the area (I work with the security dept. at my company). Cops drive by pretty regularly and pick people up if they're becoming a nuisance.

I haven't seen it in the neighbourhood that I live in, but that's probably because everyone knows one another and it's mostly old ladies and young families. Anyone else is going to seem out of place anyway, and people here are too nosy for someone to get away with that.