i only wear steel cap boots in the garage, not a huge danger in there but you never know.
i was doing some gardening and clean up years ago, dropped a 18" square slab of concrete on my foot ( not wearing steel caps ) and it squashed the bone in my big toe, the xray was a splintered mess, that was probably 20 years ago and it still occasionally sends a shot of pain out of the toe right through my foot.
another foot one..i was splitting traffic one day when i still had my GS750, got to a gap that i couldn't get thru, put my foot down and the car on my left ran over my foot. didn't hurt that much but my boot split open and flapped about like a mad thing the rest of the ride. new boots were in order but not until i'd gaffer taped the old ones and rode like that for the rest of summer