I did that once! Me and a good buddy of mine were out grouse hunting one time and he had stopped to pee, well i heard some rustling around in the taller grass by a brush pile and figured it might be a pheasant or grouse, well to my avail I remember diving onto my belly and covering my head cause a big ol' tom was flying right at my head! When I stood up i looked over at my buddy laughing his butt of with his pants around his ankles! Good times good times.