I've got a padlock. I use it to lock up my bike. This morning, it was a bit stiff to unlock and when I finally got the curved bit out, it came out completely. Now I can't get it to go back and lock in. It goes most of the way, but stops on something metallic, and the key won't lock it.
Have I broken it completely? Or am I missing something blindingly obvious?

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Have I broken it completely? Or am I missing something blindingly obvious?

Uploaded with ImageShack.us