While I was trying to qualify, I was hurrying up a narrow drive in an 800... I smacked a tree with my mirror shattering it.. The PT sup and mechanic fixed it without a word.. A couple of days later, I did it again on another narrow drive.. Again, it was replaced without incident... About a week later, on the same drive as the first incident, I did it again.. I was pulled into the office the next morning, got a stern talking too, that I was OBVIOUSLY trying to hurry too fast, and to slow down because the next one would be an accident, and I would not qualify.. I have not broken a mirror since....
Looking back, I was a run and gunner, and the mirrors were a sign that the next one could be a small kid or another vehicle.. I have learned a lot since that time...