This just does my head in, I'm driving along in town at 30 MPH, suddenly the car in front slows to 5 MPH, no indicators 
  
just slows to an almost full stop, then accelerates away again, so were back up to 30 MPH, then does the same slowing down 
  
and accelerating, this goes on for about half a mile....It turns out they are looking for a side road using an A to Z...USE A SAT NAV..Its not that 
  
difficult to understand and its free on your smart phone..!!! Get into the 21st Century..!!!  :rant: