Last year my brother went one afternoon to check the pheasant pen in the small wood where we have a bit of a game shoot. It was was sunny day and he was wearing a brown jacket and a white baseball cap. The wood is edged by a 20 metre set aside strip and as he rounded a corner he saw a Roe about a hundred meters away on the strip. Out of habit he knelt down to lower his silhouette whilst he tried to get a better look at the buck. As he did so the movement caught the deers attention and its head went up for a few seconds. Then instead of moving off into the cover the deer did the oppposite and charged up the track straight at my brother. He realised that the deer had no intention of stopping so had to stand up when the deer was about 10 meters away and still going strong. The buck slammed the anchors on at this point and left a nice set of skid marks in the ground before managing to stop and then turned 180° and ran off in the direction he came from. IIRC it was about the time of the rut. So forget the Buttolo and invest in a white base ball cap.