He needs his ass beat. His Granma should have beat his ass. He's fat 'cause he gets what he wants, which is food. His mother doesn't know how to discipline his ass. At 7 he can still get a ass whipping.
This is what happenes when kids get what they want, they get spoiled and when someone say no, they kirk out. Better to beat his now, than to have him locked up when he's 18...