[DangerousDave]

Wait... is it fixed yet?
I was hoping to see the fixing part (holding over-sized tools).


Anyway, since I caught it in time:
1 - Kayla presses her half of the remote, which causes her to swap sizes with Sabrina. (this is kind of like mksub123's 1, effectively being a size reversal)
2 - Sabrina presses her half, which causes Kayla to keep shrinking, while Sabrina stays the same. (forget my second option, mksub123's 2 is better - The two continue to get smaller as there's a knock at the door)

edit: I noticed that mksub123 replied too, so I tried to merge our suggestions. see red font.