This wasn’t the first time Ianto had been cornered by a Weevil, and unless things went very wrong in the next few minutes it probably wouldn’t be the last. Jack had sacrificed his life to give Ianto time to escape, but that had been when there was only one Weevil. Now there were two.
He had his gun, but Weevils weren’t easy to disable with bullets. The canister of Weevil spray and his secret weapon were a safer bet.
By the time Jack revived, the Weevils were trussed and ready for transport.
Never underestimate a man with a stun gun.