No problems so far, but when on the A82 yesterday in the early hours of the morning (so it was pretty much deserted), I was going up a small hill and I saw headlights behind me (Nothing wrong with that, it is after all the main Dual Carriage way in the area and it's a 50 MPH limit), but I then became aware that they were just sitting behind me and I was starting to wonder 'is this it?'
It turns out it was an Asda Lorry and was semi tailgating me as he was waiting for a car to pass on his outside before overtaking me. I could have done without the tailgating bit, but phew all the same!
Actually the clipless pedals are starting to scare me slightly as, if I have to make a sudden stop and can't unclip in time and fall over in front of the traffic .... well,

. I have already fallen into plenty of bushes, etc so far.
I'll have to make sure I don't clip in for such occasions, or at least keep one foot unclipped.