Note: The following is mildly icky about female products. Let the squimish be so advised.

Chris, holding out two fists to me in the hall: "Pick a hand!"
I incorrectly choose the left.
"Awww."
I correctly choose the right.
"Oh-- oh--! It's a tampon!"
Chris walks toward her room.
"Oh, wait, I was going to put that in, wasn't I."