Can often be better witnesses as they do not come with preconcepted knowledge that can cloud what they are actually seeing

Two summers ago I watched the Skyraider ram the P51 out of the sky at DX, saw the debris falling, and followed the path of the aircraft until both reached the ground, but had you asked me 5 minutes later exactly what I had seen, I was not really sure, and in struggling to come up with an account, would have added details which would subsequently have been found to be wrong.