Actually this reminds me of something that happened last week. I was in the Math Lab in the technology center building at my community college so that I could work on my homework. All of my homework is online and requires a CDF player, which is like 700MB to download and doesn't even work on the laptops at my house. Anyway, I was just sitting quietly working and there was this one guy sitting maybe two feet to my right on another computer doing his own homework.
Then out of nowhere, this obnoxious freak of nature walks in the door of the math lab and he apparently knew the guy sitting next to me. He was like, "HEY MAN I HAVEN'T SEEN YOU IN AGES MAN ITS BEEN FOREVER REMEMBER THIS PERSON WELL SHE SAID THIS AND THIS AND I LIKE BASEBALL AND FOOTBALL AND HEY NEED SOME HELP WITH YOUR HOMEWORK MAN DO THIS AND THIS AND THIS!" He was kneeling in between our chairs being incredibly disruptive. I could feel the exhales on my shoulder from his nose. I wanted to just swivel my chair and tell him the shut that moronic deformity on his face and/or hit him. However, I'm usually antisocial towards people that I don't like, so I just shut off my computer and left and didn't get my homework done. There was no way that I could do it with him there and no one else seemed to mind enough to tell him to shut up.