When the picture goes wrong

Well this photo was taken during our last trip trough BC and Alberta. My grandson was taking some pics of windmills. He was trying to get this one perfect and was concentrating on getting a good picture. Which he got lots of good pictures. Then this truck comes by just as he takes the pic. Aggggggggg or something like that
was his response. How many times has something moved or something else gone wrong when we take a picture and have to take another of the subject. Its not so bad now with digital cameras. You can delete these ones ( but i like to keep all my pics) but when you had a old camera you were stuck with it and the developing cost of this throw away pic.

Whats your response to that ? Have you had a favorite time this happened to you?

Ok till next time keep snapping !