What really set me off on children and their imaginary friends not being so imaginary was a mother on my tour who told me the story of living in an old house that was out at the edge of town. Her daughter started talking about a little girl in the house, came up with a really bizarre name, nothing I've ever heard, must have been some European family name and described her in detail in what sounded like period clothing. After some time she and her husband convinced her she just wasn't real. Three years later her second daughter was born and when she got to be about three years old, you guessed it, same exact name and detailed description. I was sold.