British newspaper report :
Four youths from Canberra,Australia pulled off a trick of breathtaking bravado in order to gain revenge on a mobile speed camera operating in the area. Three of the group approached the van and distracted the operator's attention by asking a series of questions about how the equipment worked and how many cars the operator could catch in a day. Meanwhile, the fourth musketeer sneaked to the front of the van and unscrewed its number plate. After bidding the van operator goodbye,the friends returned home, fixed the number plate to their car and drove through the camera's radar at high speed -17 times. As a result, the automated billing system issued 17 speeding tickets to itself.