Well, Fletcher is a klutz, AND he has arthritis, AND he's 9 1/2, almost a senior Until his arthritis got bad, he mostly hurt himself out in the yard, and going up and down the three steps into the yard. The steps are cement with a marine paint with grit to keep them from being slippery, but he still scuffs his feet on them sometimes. Honestly, outside I rarely know how he gets cut/scraped/scratched he just comes in with a new (almost always minor) owie.
He would occasionally wipe out in the house, on the wood floors, but when he was younger, he would just bounce back up, apparently unharmed I now have rubber backed area rugs everywhere, I buy multiple cheap ones so I can just throw them in the wash, and throw them out when the backing goes.
Other than non-slip rugs, you may just have to wait and see what kind of accidents he is prone to.
I know part of Fletcher's problem is his attitude, which is a full speed ahead, leap before you look, "what do you mean I'm not a puppy anymore"