Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to stop your dog from misbehaving dangerously [title] Try using a restrictive harness. [step] If your dog is behaving dangerously, you'll need to use proper restraining equipment. These devices can be used on walks as well as around the house-just don't leave your dog unsupervised while wearing a leash, harness, or muzzle, as this may lead to injury.

Ending1: [substeps] Using a head halter may be more effective than a regular collar. The head halter restricts your dog's ability to move and lunge while on the leash. Ending2: [substeps] The essential care accessory is a loose strap or rope that goes around the dog's neck. This strap or rope attaches to the dog's collar, rather than the harness. Ending3: Other dogs who may behave dangerously may be harness or muzzle-trained. [substeps] Long-leash harnesses can help prevent aggression, but can also damage the dog's behavior. Ending4: [substeps] In a pinch it might be difficult to wear a collar-just a wire. Dogs sometimes bite behind their ears, which can lead to an ear injury.

Answer format: ending1/ending2/ending3/ending4