I was on the bank of a local lake trying to be quiet and not bother a Snowy Egret I was photographing. Maybe 50 yards away a lady yelled something that I didn't hear. A few seconds later she yelled "hey, you! I asked you a question. What are you looking at? What is that bird? TELL ME!" I answered, trying not to be too loud, then turned my back to her and focused on the bird. Later I had to laugh. What a strange encounter!