We've heard of strip poker, and in a pinch we could imagine substituting gin rummy or go fish, but we've never heard of the kind of stripping game that got a young Washington couple arrested yesterday on investigation of malicious mischief and second-degree assault.

Twenty-three-year-old Joshua N. Sizemore and 18-year-old Amanda L. Madison were caught on video in their underwear tossing large rocks at cars from above Interstate 5 near Lakewood, Washington.

When troopers tracked down the scantily clad couple on the ground, the youths explained that they were playing a stripping game in which they had to shed a layer of clothing for every headlight they managed to bust. Madison stripped for busted left headlights, Sizemore for right.

The two were not only inventive in their creation of a new game, but probably also highly intelligent, since the vehicles that were hit included a State Patrol cruiser.