They are real.
I know this because my wife tells me she finds them in the dark and neglected corners of our house. When confronted, you can show them neither fear nor forgiveness. Make no mistake, their kind will multiply.
Admittedly, I’ve never seen a Dust Bunny and can only provide an artistic interpretation of their appearance. But some things we must accept on faith. Take atoms for example, I have never seen one but I’m told they’re everywhere. For that matter, I’ve never seen the Iquazu Falls, the North Pole or the Loch Ness Monster and yet firmly believe in the existence of all of them.