AnimalsJokes A Family Takes Their Sick Dog To The Vet. This Is Hilarious. A family takes their sick dog to the vet. The vet picks the dog up and studies him. Finally, the vet says “I’m really sorry but I’m gonna have to put him down.” “Why?”, asks the shocked family. “What’s wrong with him?” “Nothing major”, replied the vet. “He’s just really heavy.” See more Previous joke Little Susie’s Mother Was Sending Her To The Corner Grocery Store. Next joke A Salesman Dropped In To See A Business Customer.