Have you ever encountered a problem that you wished to leave unresolved? - Yes
Did you exercise extreme extroversion, to not think about it and thus try to resolve it? - No.
Did you use any other means? - I simply put it out of mind. Unless the issue is especially important to me, that's easy to do for me. It then heads to the nicely organized filing section somewhere in my brain, for reference if I ever do decide I care to try to resolve, and it won't get thought of again most likely, unless it gains some importance.