Maggie, after scratching a scab this morning:
Maggie: Luckily I have another pair of skin!
M: I had another pair of skin under my scab, so it’s not bleeding.
M: I have three pairs of skin.
D: Three? Pairs of skin?
M: Yes. If I scratch off one pair, then there’s another pair. If I scratch off that one, then there’s a third pair. But under the third pair is my blood.