On the same day, a scepter fell from the hand of a sculpture of Charles I, and a picture of Archbishop William Laud, who was later impeached, fell to the ground. On another day, a bust of Charles I was stained by the blood of a strange bird that flew overhead. When the bust was set up outside in Nottingham, it was constantly being toppled over by the wind. It seems rather silly to me to know that such small mishaps were irrationally considered to be omens from ghosts. Misperceptions are very common among people.
Some people see things differently than most.
People like this truly believe that what they saw has a paranormal explanation and cannot be told otherwise. In addition, lie detectors don't work with people like this, because they really believe in what they think they saw. This is simply explained by contagion. An example of contagion at work is when a small panda bear escaped from a zoo in Holland in the year 1978. After the news of the escape was publicized, thousands of people called the zoo saying they saw the panda.