Take it quickly

We had just finished eating an early supper at Charlies seafood in Crystal River. I was still full from the large pork and fries lunch at Frogs in Williston. Everyone else had eaten small Frogs BBQ. At Charlies I had the catfish, Gerald and Melanie the Maui Maui and Billie Earl the fried mullet. We walked out to the dock and as I approached, I had the little Canon S100 camera out and ready in P mode with a minus one exposure compensation. I had seen this lady sitting by her boat and knew immediately it would make a good composition between the two palms. The lady never saw me take the only shot I was able to get before she noticed us walking up and changed position totally, getting up to load the boat from Kings Bay.
Point is, had I not been scanning ahead, composing as I walked along mentally,  approached quietly and quickly, camera out and ready, I would have missed the shot. It is satisfying when things fall into place ever so often quickly.