My Accord Nov'07 Tourer Ex,2.4,Auto-& it clunked & nasty sceeched This would happen on a a Friday & local & only Honda (in Jersey) workshop does not open till Monday! Just drove it about 100 yards and there was a clunk & very nasty screeching sound so I reversed it back to our house (fortunately we live in a private cul-de-sac) no noise when I reversed the car?! So my question is, did I pick up a stone, or maybe the brake pads need renewing?? If I shine my torch at the break pads should I be able to see a grove and what is the minimum safe brake thickness, please. I bought this car used last November used & had it serviced by the local Honda garage in Nov'12, with nothing on the invoice to say pads need replacing soon. It has done 32000 miles since new. Many thanks for any advice in advance. Note, I just drove it and the nasty screech has stopped & no clunk, so probably a stone?