Dude I feel bad for you man. What was your original reason to short this stock? Growth too slow for you? Too many stores? Sh*tty products? Coffee prices? Dont tell me it is P/E ratio---you have to be the biggest idiot to short a stock based on P/E. (For the same reason, its a bad idea to buy a stock based on PE alone--look at WDC and APM)
People have been shorting this stock based on its PE since its IPO, most, if not all, have lost money. (That is from Howard Schultz's book "How I built Starbucks one cup at a time")
People have been losing $ shorting SBUX for three years. The stock is no more overpriced than KO, and has far greater growth prospects. This company is a major player, not a fad. Cover your call, panicked.