Greg is not a difficult dog, but he has behavior problems built in that you can live with. He doesnt like to petted in the face, he will allow head pat but to an extent, which is difficult sometimes because he loves to rub his body on you asking for rubs. He gets along very well with other dogs, having had various roommates here at the shelter. Greg does have dominance issues with people and it takes a while to earn his trust, but in the right home, he would be loving and thrive. He is about 8 years old.