Im sure we have all had our moments of "how did I miss that" but yesterday my 12 year old son while we were washing the TV in the driveway says "hey Dad, what's this under the trailer" I walk over and under the door is a storage box that locks. Somehow after a few months of owning my pup I've never noticed this. I grabbed my keys that the PO gave me and sure enough one fit. I opened it up and inside was......... well, nothing. I've found this to be an odd spot for this under the door. I cant think of anything that I would find useful to store in there because once the step is down you lose access . Do any of you who have this storage box use it? what do you put in it?