When you drive a lot you see some of the most rediculous things going on but, if you are lucky you spot them at the beginning and see them develop from the banal to the dam dangerous. An example of one in the UK is the now common practice to drive at high speed around the outside of a round about. This happens even if the entry arrows indicate that the lane goes of at the first exit. The proponent usually makes a faint at each exit they pass, thus you are never sure what they want to do. I observed this first in Spain about six years ago. It then moved to the UK and has developed to include not only private vehicles but 40 foot articulated wagons. What motivates this kind of stupidity?