Somehow or other, a few small stones/pebbles have got inside the tailgate of my 307SW. Now whenever I open the boot and lift up the tailgate to its full extent, the stones rattle down to as far as they can go. Similarly, when I close the boot and slam down the tailgate, the stones rattle back to the bottom (which was the top when it was opened). The stones themselves are not doing any damage as such, but the rattling every time I open/close the boot is irritating. Unfortunately, I can't see how I can get to the inside of the tailgate (or for that matter see how the stones got in) in order to get the stones out. I don't particularly want to go to a garage if I can help it as I suspect it is a small job and they will charge me an arm and a leg. Anyone got any ideas.