Still down in Hereford at the moment, just driving along down a big A-road this morning and heard a sizeable bang! Didn't think much of it, sounded like a pebble being thrown up in the arch. Stopped and had a look later on when we arrived at destination only to find a irregular marble size dent on the door crease line! Paint taken off around it down to the metal, and a couple of ricochet marks a few inches away.
I looks like someone threw a stone at the door, but we were on a quiet A-road with no traffic and fields all around. No idea what it was, didn't see anything.
So looks like it's back in the shop next week to get the dent out and probably re-spray the door. AARRRRGGGGHHH!