Raccoon lines belong to the after-hours register — the playful, slightly unhinged energy of messages sent when sensible people are asleep. Use them on someone who already matches that energy; the trash-panda devotee is a recognisable type and self-identifies quickly.
They travel well as app openers because the absurdity filters ruthlessly: anyone who replies to a raccoon line was worth opening with one. The rest of the nocturnal cast lives in the animal collection, with the cat lines covering the indoor equivalent of the same chaotic energy.

