It may be empty because of unforeseen danger like sharks, extremely shallow reef, or dangerous currents. (mauiinn.com)
Separation Anxiety Helps eliminate your pet's destructive behavior and keeps your pet safe from unforeseen dangers when you are away. (1800petmeds.com)
Using a crate is helpful in keeping your dog safe from unforeseen dangers when you are away and even when you are at home. (1800petmeds.com)