Some of the many "wild" deer that roam the temple grounds. At one point, my batteries ran out, so I went and bought some extras from a street vendor (who just also happened to sell deer food). Deer must have followed me around for a good 2 minutes after that, assuming I bought food. I tried to show them the batteries, and explained (in Japanese, no less) that batteries don't taste good, but they must have thought it was a ruse. One tried to eat my shirt. Eventually they wandered off to pester someone else.