I work in swindon, we have been plagued by a vicious herd of knife-toting sheep in black leather gang jackets. thank god for the courage of our wiltshire police who called out the armed response team to deal with this menace. unfortuneatly for the sheep, the police mistook it's hoof for a gun and shot it in self defense. after all, why try to lasso it when that might bring it's razor sharp sharklike teeth in range... nasty things, sheep.
on a more sober note, you can now see why we do not normally allow the police to have weapons over here. after all, only the criminals over here have the right to bear arms, and are the only ones trained in their use.