Don't Mess with the Dog

This is my arm...

this is my arm with a protective wrap on it...

this is my arm with a police dog on it (won't let go!)...

and he would still have my arm (but I might not) if I were dumb enough to fight him... any questions?
When the officer says stop, you stop!

I did good, right? Then let me take one of them. I promise to be nice.