On December 5, 1999, about 1435 eastern standard time, a Cessna TR 182, N5260S, was substantially damaged during takeoff at Haysfield Airport, Clarksville, Maryland. The certificated private pilot, and two passengers sustained minor injures. Visual meteorological conditions prevailed for the personal local flight. No flight plan was filed, and the flight was conducted under 14 CFR Part 91. According to a Federal Aviation Administration Inspector that responded to the accident, the airplane was using runway 13 for departure. Records indicate that the runway was grassed covered, and 2,400 feet long by 85 feet wide. Examination of ground marks revealed a set of "faint" tracks, consistent with wheel marks, 600 to 1,000 feet down the runway. The marks departed the runway to the left, and were oriented on an approximate heading of 100 degrees magnetic. A tree, approximately 10 feet tall, to the left of the runway and along the debris path was knocked down. Another tree, approximately 88 feet farther, had fresh cut marks. Sixty two feet beyond the second tree, were ground scares, and 15 beyond that was a second set of ground scares. The airplane came to rest approximately 190 feet from the first tree, with the fuselage pointing about 195 degrees magnetic. The pilot reported that he maneuvered the airplane to avoid two or three deer he saw enter the runway from the right.