Buster bit almost right through my finger when i tried to split up a fight between him and Lola, the pain was awful, i nearly passed out after feeling my bone crunch and almost being able to see it! I never got a tetnus but i wished i had got it checked out as i think he did a bit of damage, the scar still hurts occasionally, i think he chipped my bone! In hindsight, i would defiantly go ifit happened again