Especially back. Yeah, while screwing around with the chipper & yardwork yesterday I pulled something, badly enough that I stayed home today. Better this evening.
I took the time to work on repairing my favorite pocket knife. It's a CRKT lockblade marked 'Mirage' on the blade; half-serrated blade and pocket clip. Discontinued, of course. Problem was the two screws at the pommel end that hold the scales on; they fell out a little over a year ago, and I found replacements, but these somehow stripped their threads on the one scale. No, I don't know how, I put them in with threadlocker and aside from checking them every once in a while have not put a lot of torque on them.
What I wound up doing was a: find some screws that would work, b: drill out the hole on one scale and the liner plates to fit the screw, c: drill out the threaded scale a little smaller than the new screw and use one of them suitably modified, to cut new threads, d: profile the head of the new screw to fit in nicely, e: cut that screw to length and finish the end, f: install it with threadlocker.
I only did one of the two; the drill bit that fit the purpose died while trying to drill the liner for the second. So there's one new screw, and I'll do the other later when I can get a new bit.
Just another day in my whirlwind life.