This is What Happens.......

when you drive to a small town, restored movie theater and you step outside to clear your mind a minute, only to come back and find that the door is locked and there's no one in the lobby to let you back in - for an hour and a half (when the movie's over).  Luckily, you've taken your camera with you (because you're the kind of camera freak who takes it everywhere), so you can entertain yourself for that hour and a half.  Unfortunately, there's only just so much on that little small town street after the sun goes down.  Therefore, you have a gazillion pictures of the same things.

It was a long hour and a half.  You have a lot of time to play with camera exposures.