You’re a tiny person, known as a “Bitty”, you’re about 1 foot(or shorter). Bitties are treated like pets, so there are shops that sell bitties. Swap, thinking that your tiny-kind looked adorable, got one, and it was you! You are placed in a box with holes in the top, to let air in. The person delivering you sets you at the front door and knocks before teleporting away. Swap, knowing what it is, gets instantly excited. He rushes outside and gently picks up your box, closing the door behind him

Swap: "GUYS! THEY'RE HERE!" He places the box on the kitchen counter

... Classic: "What'cha get?"

.... Fell: "Bet it's something useless"

... Horror: "?"