*you hear a knock, and open the door to find a tiny beetle dressed as a cupcake at your door* Trick or treat, Mr. Sans!
He opens the door and spends a few moments looking from side to side, thinking he had been pranked for a second before he hears the small voice. Looking down for once in his life, he grinned at the beetle. “Wow, someone smaller than I am for once. Now that’s a rarity. Here ya go.” He carefully places something next to the insect.