Omi had been about to respond to the offer, rather enthusiastically in fact, when Aya approached them. He actually managed to surprise Omi into silence by offering the knife, which left him unable to do much except accept the weapon with a quiet 'thanks' as Aya left again. He really should have protested Aya handing over a useful weapon, but the gesture made him bite his tongue and just take the knife.

After a minute, he shook his head and focused back on Artemis. "Syringes? Can I see one?"