One frustrated Palestinian has used his Bulldozer to rampage cars and persons , in Jerusalem If you are curious to know why he was frustrated you must know that he was occupied all his life and was locked inside his city which was shrinking smaller each day. As for knowing how did he come up with this idea , ?? it is a simpler question.... this occupied,frustrated,deprived Palestinian must have watched other Israeli-Bulldozers who regularly and unpunished drive their Bulldozer over homes and schools, also. One proverb says : The Apple does not fall far away from its tree !!