To you guys with P51/P38 can openers. Do you put something on it so it won't flop around or do you just leave it be? I put a small O ring on mine so it won't open in my pocket and scratch my stuff. I found on the P51's there is a little lip under the hinge where the blade itself is. You can see it in this picture it's the black rusted spot if you don't know what i'm talking about. (Picture is not mine)
I put an O ring in that little spot so I can slide the ring up so it won't open but if I just slide it down a little I can use it. Anybody else do something like this?