Would you approach me if I looked super pissed off?

Today I had 9 am section (the most ungodly thing ever... on a Friday to boot!!!) and fell asleep when I got back home at 11. I lamely slept through lunch, called up Matt and was not very nice to him (hungry + sleepy = grumpy, but still no excuse), and half an hour later was in Tresidder getting a slice of pizza, with a look on my face that clearly said "I HATE EVERYONE". As I was walking to my seat, this scrawny asian dude gives me this really creepy dorky smile, and I instantly look away. Not soon enough, it seems, because five minutes later he sat down at my table (even though there were about 20 empty tables around me) and said "Excuse me, do you mind if I join you for lunch?" in a voice that was probably about an octave above mine.
YUCK! Wow, I really didn't want to talk to anyone at that time--certainly not some weirdo who tries to pick girls up in Tresidder. I stared him down and left, saying "sorry, I was actually just leaving" and retreated to the Lair (heavenly study area on the 2nd floor of Tresidder) to finish my lunch in peace.
Now, I don't want to rag on ALL asian guys, because I've met a lot of cool ones, but seriously: there were quite a few white girls in the cafeteria, including one who was sitting next to me at a table by herself. Why did he pick ME (ie the only asian girl in the place) as the target of his creepiness? I HATE how a lot of loser asian guys assume that because I'm asian I'm somehow "eligible" for them to hit on. I can't tell you how many times some asian guy will meet me and, within the first ten minutes of the conversation, say "so, I was wondering: are you Korean, or Taiwanese, or Chinese?" The last time someone said that I gave them a confused look, and said, "I don't know what you're talking about, I was born in America." This may sound bad, but I identify more with the American culture than with my Chinese--maybe because I spent my entire life here! Okay, maybe our grandparents might have come from the same continent, but it doesn't mean you can bother me more than any other girl. In fact, the idea that you're using our supposed "connection" as two asians as a crutch so that you can introduce yourself to me is pathetic. Get a life, stop playing WOW and DDR and wearing clothes that your mom bought you in 1995, and for the love of god, leave me alone!