Sure scares me what I hear in yards 45 year old blokes driving tippers and not knowing about the retarder or the button on automatics that set the drive system up for off road use. Most vehicles have their handbook somewhere in the cab.
Completely different thread put your seat belt on well for DAFs with auto breaking that pick up stationary trucks in lay bys you are passing or cars that are stopped to turn right. Ive had the radar turned right down and still made an automatic emergency stop