I was rushing to get back to the house for my birthday dinner and went to open my OEM Honda pannier with the OEM key. Which snapped about half way down from the plastic grip. The broken off bit is of course still inside the lock cylinder. "Easy," I thought. "Just shove the remaining piece in and unlock the bag. I have a spare cylinder and can swap it out." Nope. I can't get the stub of the key far enough in. I am tempted to drill out the lock, but don't know what I'll find once I do that. Also: drilling steel surrounded by plastic scares me. Anyone done this before? Many thanks for your suggestions.