.. yes it's normal. here's proof. :P

Here's some sort of build-up to the previous post :)

This my dog, Cooper.

Nah I'm just fooling around. He's much bigger now. I wouldn't even let him out of my sight if he were that tiny :P 

This is how it works. Cooper first spots a troupe of 6 or 7 baby munkehs playing merry-go-round on to p of my garden table's giant umbrella. They usually arrive at about 5.30 in the afternoon. He barks at them yadi yada, and then decides to join in the fun. Unfortunately, it's impossible for him to get on top of the umbrella so he waits on the grass for the monkeys to come down and start pulling at his tail, stroking his head and sometimes, poking his eyes.

Then, the big fat alpha male monkey arrives. He hates Cooper but my poor little dog doesn't know that. Every swipe, pounce and tackle made by the monkey is treated as a game. -____-' Look below.

Monkey#2 actually has a crooked tail lol.