When I worked in the ORs, they were very careful with the sponge count (a “sponge” being a small square of cotton gauze), and somtimes dleayed closing while everyone searched for teh missing sponge.
One of my friends had his appendix out in the 1950’s. Back then, your family doc did the surgery. My friend had a sponge left in him. Pain and fever rising over a few days. He had to get re-cut to remove it and then stay in the hospital for quite some time.
OTOH, a junior mint probably would have been cool and refreshing!