This may qualify:

Yesterday was my last long bike ride before my triathlon next Sunday. I decided I'd strip down the bike, take only what would be with me on the race. I needed to take one key to get in the back door of my building, but the rest of my keyring I hid in my storage locker. I never lock the thing, but there's a padlock on there to keep the door shut.

The tires are filled with air, I have my beverages all set, I tuck away the keys and...lock the padlock. WHY?!? I never do that! I don't even know the combo, it's been so long!

I ended up filing through the screen on the front of the storage locker with a metal file I found in the basement. Reached in and got my keys. Went up to my apartment. Sure enough, the combo's nowhere to be found. Take the hammer and screwdriver down to the basement, and pry the entire hinge + lock out of the wood door of the locker. It pays to live in an old building.

Went for a 30 mile ride.

Came home, went to Home Depot, bought wood putty and a new hinge, fixed up the door (it looks like...it was broken into!). Sheesh. Now it has a little lock with a KEY. If I accidentally lock this thing, I could probably pry it off with an allen wrench!

The funny thing is, if anybody wanted to steal anything from the storage locker, they're welcome to it. I'd rather they not take my Christmas ornaments, etc, but it's nothing that needs to be locked up. The BIKES, on the other hand, are securely locked in another part of the basement!