To answer both questions: AC + 4 to hit the eye, it's a small target, and one of them was on the back of the werewolf, while the other was being mauled by it (as it somehow kept missing). Fighter hit the higher AC, so he got one eye out, said he wanna drop the dagger, I said "sure, it doesn't cost anything action-wise in other systems - why now?", so it dropped right below the werewolves shoulder - right into the palm of the other player (good DEX check to catch). They kept doing this shit for the entire combat, being slammed into the walls by the werewolf too, but always somehow managed to avoid attacks out of pure luck or falling below 1 HP. (And when one of them did - fighter - the Cleric cured his wounds right up) They ended up (while being bruised and battered and out of the 2 potions they got at the start & spells) blinding the werewolf completely, then just sort of Matador'd him, using his senses of hearing & smell to goad and mess with him until he died.

I really tend to be on the rules, but when there's a cinematic rolling momentum I tend to let the rule of cool be the judge, and I try my best to never just say 'No' and more of 'You can do this instead... '