500 miles on the clock and I hear a shriek from my wheel. Knew at once I had a stone in the brake. Called the RAC and only just had time to fetch a coffee from MacDonalds across the road before they arrived. He even picked the right wheel first time! He told me stones will often drop out if you reverse, which I didn't know, never having had it happen before. I was happy to tick outstanding on his customer satisfaction survey!