“The Gentle Giant,” Great Danes are perhaps unexpectedly pleasant and tolerant. These dogs are enormous, so it is good to teach them early on that they cannot jump up on people, but besides them trying to love you to death, these dogs mean no ill will to anyone (at least not invited guests). Like other dogs, but more so because of their size, proper socialization early on is crucial to not having a monster on your hands. Any dog can become a problem if they are allowed to behave however they please, and that can become a serious issue when your problem stands 7 feet tall and weighs 200 pounds. .