Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to walk your dog as a good neighbor [title] Pay attention to where other tenants are walking their pets. [title] Make sure those pet users pick up and dispose of waste properly. [title] Avoid following the same paths as less considerate dog owners who do not clean up after their pet.

Ending1: [title] Do not yell, or intervene if owners are not home when they need to clean up. [title] You should also schedule an obedience dog training class. Ending2: [step] If someone you know actively picks up their pet after they leave the house, avoid following that same path as an elderly person who may pick up their pet. [substeps] If you know any front porch dogs, keep them away and keep the entire family off the same paths as smart neighbors. Ending3: [step] If your kids want to visit a park nearby, ask if they're going to the park or if they're learning the following manners. [title] Post signs at parks you can easily recognize. Ending4: [title] Pet owners who understand clean up, supplies and etiquette are often misunderstood by the less concerned dog walkers. [substeps] Offer to hand them an extra bag for cleanup.

Answer format: ending1/ending2/ending3/ending4