I have done this as am very ashamed in the drivers that are on are roads today, they understand that a horse does have a mind of its own amd anything can trigger him to ne scared! the road outside my yard is  40mph but they never do that its always about 60 70 even wheb they are overtaking they never take into mind that they could be the cause of dearh if anything was t happen! horses was on the road before any car so strongly belive that they are to be treated with the greatist of respect! kill yur speed not my steed!!