A car breaks down along the expressway one day, so the driver 
eases it over onto the shoulder of the highway. He jumps out of 
the car, opens the trunk, and pulls out two men in trench coats. 

The men stand behind the car, open up their coats and start 
exposing themselves to the oncoming traffic. This results in one
of the worst pile-ups in history.

When questioned by police why he put two deviates along the 
side of the road, the man replied, "I broke down and was just 
using my emergency flashers!"