Overtook me and another cyclist on the sweeping S bend on the A233 near the Downe/Keston roundabout, or rather his student did. Too close, on the narrowest bit of that road with one wheel on the double white lines, and in the face of oncoming traffic. He even told me it was plenty of room when I caught up with him further down the road! I find out this morning I'd forgotten to turn on my video camera when I left home. Sigh! I could have done a Cunobelin otherwise, and written off to all the driving schools in the area.