We adopted a 3 year old fixed male boxer (Rocky) about 2 years ago. He has had some previos training from his first family and knows several basic commands. He has never shown any agression in the last year we have had him. We adopted a boxer male (Tex) that is now 9 months old. The older male has been attacking the pup to the point that we have to pull him off. Rocky has also bit our neighbor while he was sitting on the couch, and one of my wife's friends. He has become agressive to anybody coming in to the house except our family. He is starting to get agressive over food and I was bitten when one of my kids droped a plate of food on the floor and got in front of him. If I wasn't there I fear he would have attacked my 10 year old son. My wife was calming him down after we pulled him off the pup and he turned on her. She was severly bitten on the for arm. I just picked her up from the hospital after 2 days of I.V. antibiotics. After all of this my wife can't live with out him. I have a 14 year old daughter, 10 year, and 5 year old boys. I fear for my kids and wife's safty, but what options do I have but to put him down? How does someone make that decission to get rid of a family member? If anybody has ever delt with something like this... Help! I can give more detail on what is happening if it would help keep our family together.