My grandchild is a real brat! He is never ready for school in time and spends an hour in the bathroom. He is 9 years old. We are all so frustrated with him. He doesn't care if his mom is banging on the door for ten minutes, he doesn't care if he misses his bus (which he misses everyday) and he is very rude and back answers all the time. He is a bully and all other children in my family hate him. He snatches away their toys and iPads and hits other kids if they ask for their stuff back. My daughter-in-law is at the end of her tether!

Someone suggest tips to discipline my grandchild please!