I secretly have buns of steel.

I've always done some serious athletic things at times. For example, I took on long distance cycling and would ride for hours and hundreds of miles of hard riding over hilly terrain. Lately, I've been going for 4 mile walks every day I have off with my son (in his stroller), and over this summer I've had like 11 days off at a stretch, so I did a lot of walking.

It adds up. Then someone decides they're gonna be funny and they hit a brick wall where they expected a pillow.