If you've ever eaten a burger or a steak, and it's undercooked, you say "A
little iodine and that thing could
walk again!", implying that it's only a minor cut, and the
animal could come back to life if iodine (a cut medicine) was applied.
Waiter: Here's your steak,
sir.
Customer: *Cuts into the Steak, sees that it is raw.*
Waiter: Is everything OK?
Customer: Actually, no.
Waiter: What's wrong?
Customer: Weeeell, let's just say... A
little iodine and that thing could walk again.
Waiter:
Oh, no. Terribly sorry, sir.
But you know he isn't sorry. They never are.