Fingernails and frozen noses

Ever notice how after you expose your hands to water for a period of time (shower, washing dishes) your nails seem to be longer? I always notice this. The only explanation I can think of is that the tips of your fingers somehow shrink temporarily and thus your nails appear to extend farther.

Also, you know it's cold outside when you step foot out the door and you can feel the inside of your nose freeze.