I think we all know where this is going...
I wore my pretty promise ring for 4 years, never taking it off.
Except one time when I was acting in a friend's directing class scene and I asked my friend to keep in it his pocket and had to chase him down later when I remembered to get it back. And then one other time in late night rehearsal for another student-directed scene, I didn't take it off, but the tiny diamond fell out.