I just finished rebuilding an old Raleigh Reliant that had standard threading on the left pedal (and matching crank arm threading, of course). I almost killed myself trying to remove the darn thing before deciding "What the heck, why don't I try the other way?" Much to my surprise, it worked. Indeed, upon inspecting the pedal, it was marked "L," but had standard threading on it. I've never seen or heard of such a thing.

Has anyone else ever encountered a standard threaded left pedal?