Contrite answer to "Who put the empty ice cream carton back in the freezer?"

IDID

Think of the two words you might mumble when caught red-handed, combined into one short admission.

This clue plays on the guilty admission someone might mutter when caught doing something sneaky. "Contrite" hints at an apology, and the answer sounds like a sheepish "I did" when spoken aloud—just like the two-word response "I did" squished together into "IDID." The empty ice cream carton makes it a relatable scenario where someone fesses up to the crime.