How does the panda defend itself?

Don't let the fluffy image or the diet fool you. It's a 250 pound bear with claws and teeth, like most bears it will avoid contact but when cornered or protecting cubs it will fight. They are not common but there are cases of attacks on humans both in the wild and in zoos, Beijing Zoo's Gu Gu has bitten 3 people to date (although one of them, a drunken student after a hug bit him back!).