He also a horny, intact male, that tries to mount every dog he sees. The spikes are unfair, and potentially dangerous to all of the other dogs. If he attacked, or got into a fight with another dog, the other dog would be practically defenseless. As you can see, dogs communicate "NO!" with muzzle butts and nips other physical warnings. The dogs could get injured just communicating 'no!' with that thing.

(The grey dog, Winston, and the Husky, Nevaeh are both my dogs and they grew up together and love each other so they play like this.)

This channel exists in order to educate people about dog behavior in dog parks.

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