1.   Luyendyk was speeding around the track during a routine practice session when the trackside yellow caution lights began flashing.

2.   Still, I see three caution lights on the information superhighway.

3.   Vanitas pictures, which were painted all over Europe, are blinking caution lights for hedonists and other lovers of earthly pleasures.

4.   IRL rules stipulate that racing ceases the moment the caution lights are flash around the track.