It's wrong to step on your dog's paw.
Bob is walking his dog around the local canine park.
Bob wants to tire out his dog so it will go to sleep when they get home.
Bob pulls out his dog's favorite toy and tosses it back and forth for the dog to chase.
Bob pulls his unwilling dog along as he runs and his foot lands on the dog's foot.
Bob gets to enjoy some peace and quiet when he gets home as his pup goes right to sleep after an exhausting day playing at the park.
Bob has to take his dog to the vet and get it's injured paw examined costing him a couple of hundred dollars.