1) Black background: "Excuse me, I think the lightbulb burned out. Could you reach up and change it for me?"
2) Water background: "I may be small, but I'm light enough to walk on it."
3) Graveyard background: "I have to be small. Otherwise, I couldn't stencil the gravestones, now could I?"
4) Psycho background: "Quiet, mortal, for now you shrink with me. Look! We are becoming sub-atomic size."
5) Airplane background: "Da plane, boss, da plane!"