If a friend of yours has just had to say good-bye to a family pet, you may wonder what you can do to show your concern over the loss. Sending a sympathy card or a written memory of his pet are both appropriate and considerate actions to take. Showing your empathy with a gift basket for a pet is also a heartwarming gesture. Even though some non-pet owners may not understand the grief that is brought on by the death of a dog, many want to sympathize and sending a gift is one way to bring comfort to a mourning friend.