I don't know what to do anymore.. I feel like I am constantly yelling at him and I hate it. He doesn't want to listen, he is so rude to other people (refuses to say hello, thank you, bye, or shake hands) he always has something sarcastic to say back when I ask something of him.. He can be so sweet and loving but those times are rare.. He has recently started acting the same way towards his grandma. he will yell at her and try to boss her around. Spankings don't help, yelling doesn't help, ive tried just talking with him,, nothing seems to help. Its got to the point now that even his school is concerned about his behavior and is asking to have a meeting with my husband and I.. What can I do to correct this behavior? I'm at a loss.