Reverting to my former Somerset vernacular.
"I'd seen he before he'd seen I."
During my recent Parkland walk I was slowly moving down a slope in a woodland area which leads to an open circular inlet of water at the edge of the largest lake. Having reached the bottom I stopped to survey the area. I was dressed all in green and matched my background quite well. This must have been the case as about 50 metres ahead of me a Muntjac Deer emerged from behind a willow tree and moved from my left to right across my field of view. Having learned the lesson from a previous occasion relating to deer, I have a preset setting on my camera that allows for a silent shutter action. So this was put into action and I got off several shots before the deer moved out of view. I retraced my steps and left the area, although I was sure that he had seen me eventually as can be seen with his alert look on the last shot.