Morne generates his grenades from a magic reservoir, so it's unlikely any of those would be lying around, except maybe in mote of light form.
Still, Morne is all too happy to stock up on ammo for his gun that won't give Khannie hearing loss, and make sure his sword is still doing all right as well.
"No drops, but at least we're stocked up again. Let's go." he says casually, heading to the goal with the canister one Khannie is done.