When we cover their crate with a blanket or even buy an enclosed crate (pet taxi). It can create fear aggression. Domesticated dogs need to be able to see what is coming at them from all sides. If you cover the crate, the dog can only see out of the front window. This is especially important in small dogs. In a pet taxi, they can only see hands and feet coming into their space. This can lead to them tucking their tail in fear and backing up. Then we as owners have to reach in and get our dog out which causes more fear.

Over time a pet taxi could turn a dog into one that uses corners of rooms to guard or strike at people. If your dog is in a covered crate, he or she is also not used to things coming over the top of their head. You may notice this behavior while you try to introduce your dog to someone and they are “head shy” or growl. They can often tense up or even snap if someone tries to pet the top of their head.