"What I can't figure out is how I never managed to break any bones as a kid."
You grew up on the Learn As You Grow plan, you started young, and learned more as you kept trying new things.
Sue
Broke 2 bones as a kid on that Learn as you grow plan - One, I jumped, landed wrong, and broke my little toe on my right foot - and when I say I jumped, I'm talking hopping down about 6 inches - just a bad landing - the worst part? Did it the night after school let out, and it didn't heal enough for me to walk without crutches till 3 days after school started - yep, lost a whole summer - except I built a real cool soap box car for me to get around in...
The other, I went to put my hand on a friends shoulder - he jerked away - just hard enough to get a hairline crack in the last joint of my pinkie