I have a black great dane pup. Hes 5 months old and already huge Hes very intelligent, potty trained, crate trained. Hes extremely stubborn and I have two small children and he doesnt understand how big he is so hes always jumping on them and its becoming a problem. He doesnt bite or anything and hes very sweet and loving. Im asking a 150 dollar rehoming fee, only because we paid so much for hi...