Ace should be told to act his age and he does...he thinks he is a puppy. He will jump up and down trying to get attention just as a Jack would do. He plays, runs and acts just like a youngster too. His one big fault is-he absolutely hates cats. Please do not invite him to spend his life with you if there is a cat in the house. He loves people, kids and other dogs. He likes nothing more than to be with you and watch TV. He wants to know if you have room for him in you life, because he will certainly enrich it.