My JRT bit me this evening because I was packing some of his food up ready for a journey tomorrow. Last week he bit my friend because she pointed her finger near him when he was excited. He has bitten everyone in the family including me several times. Some of the bites have been serious aggressive deliberate bite requiring medical attention. I love him dearly but I cannot continue with a dog when the only way I can keep him and everyone safe is to muzzle him for his whole waking life.