An adorable dog named Lumi rides around New York City on the back of his owner Jackie Hornung. On the New York City subway, all dogs have to be in a carrier or backpack. The official MTA rules state: “No person may bring any animal on or into any conveyance or facility unless enclosed in a container.” Due to the rules, pet owners are finding creative ways to bring their dogs on the subway. Hornung showed Inside Edition how she fits Lumi into the backpack.