I'm pretty torn on this one. My initial reaction, is, hmm, that's kinda mean. But then I think about this time waiting for the El where a guy said Hi to me and then proceeded to tell me how sexy I am, grab my ass and follow me on the El and all the way down town trying to buy me a drink. I don't know how to be mean, so in another way I wish I could do that. But, now I do what Emily said, I wear ear buds every where even if my phone is dead.
The reason people chat sometimes is because you're standing there doing nothing for 10-15 minutes. It is bascially acceptable where I live to say hello or comment on something, but what happened to me is unusual. If it happened again, as long as I wasn't falling over sick, I would be super nice still. I'm way too nice.
But, if I told every guy who said Hi to me to go screw themselves, I would not have met my on again-off again BF. And no matter how that ends up, I'm really happy it happened and it was a year of awesomness.