This is true and very funny!
About 10 years ago I was watching 'A Life of Grime' presented by John Peel on TV. Mid program I heard my wife and daughter shrieking upstairs. They rushed down into the lounge announcing that they'd been confronted by a rat in one of the bedrooms. You can understand my reaction "Yeh, right, very funny!". They went on and on demanding I did something. In the end, totally unconvinced, I went upstairs to investigate. They told me to look under the bed.