An open letter to the person whose car was adorned with a "Jesus fish" and a whole array of Jesus-oriented bumper stickers, including "WWJD?":
For some reason, I can't seem to find where Jesus taught, either by words or by example, If thou seest someone in front of thee who signalleth his desire to enter thy lane of travel, speed thou up until thou art next to him; and then match his speed, that he cannot enter the lane except he doth slow down and try again behind thee.