Been gone a while but am back for help. Have just rescued a 4 yr. old ex stud who seems very needy, has had little to no training and in my honest opinion doesn't seem like he has been well looked after. He is booked into to be neutered this week and will be having his mouth looked at as his breath smells awful and his teeth are all brown. Is this normal for dogs that have been bred from ? all advice greatly received.