It's a dog's natural tendency to steal and if taco meat or other delicious food fall on the ground you want to be able to say "Leave It" and have your dog listen. Teaching this to your dog helps in more ways than with food; imagine that dead bird your dog found on the beach, or when it's time to leave the dog park but your pup won't stop playing. You'll find that teaching Leave It will be the best tool you'll have with your pup!