Hunters call it "Buck Fever" when you miss the shot from freezing. I do a lot of fishing here in Florida. When people come here and see a big fish in the clear water, they inevitably screw it up somehow. It is from over excitement. Your anticipation over runs into your reflexes.
Now, it is different if you see a sot and can't get the camera right in time, even though you haven't lost it. Either way, there will be another day.