Carolyn Worthington of West Chester, Pa., took this photo of her German Sheppard Trooper on the roof of their barn.

"He was probably chasing the cat," said Worthington. "I was in the barn and heard a thundering of running back and forth on the roof. He jumped up there from a back stairway, which is no easy feat. I had heart failure, of course, wondering how he was going to get down without breaking his legs."

"He just jumped off and proceeded to run around like `That was really, really fun.'"