We can understand this raccoon on a deep level, there is a pile of grapes in front of you and you want them all, but there's someone asking for a grape. So, you kindly leave them one. But if they reach for that last grape that's currently in your hands, it's a bit rude.
Mr. Raccoon, we're with you on this one. He doesn't even seem to mind giving the human a grape, but it's the lack of manners the human has that the raccoon can't abide.