why do they shoot horses when they break their legs

[Mark TKO]

........... because they are harder to hit when they are running around.

[Memphis]

I once saw a horse go lame at a race, they brought out the shutters to sort him out and the horse flipped, he jumped up on his three good legs and kicked fuck out of everyone and everything, very funny.

[El Kabong]

Oh the reason they shoot the horses when they break their leg(s) is because they can suffer from infection or if they don't have weight distributed on all 4 legs they suffer from a circulatory disease.

Barbaro is going to need months before he is able to survive