In the early 1970s, the Grey family experienced an invisible cat in their home in Montreal. What was remarkable is that the feline could be heard and felt, but it was never seen. In another instance, a young boy in the Montreal suburb of Roxboro took on what his parents assumed was an imaginary friend named Duke. The boy would get upset if the parents tried to sit on the couch when "Duke" was there. While the parents humored him at first, they got the shock of their lives when a neighbor informed them that the previous owner has a dog of the same name before passing away with her beloved pet in a house fire. It would seem that invisible pets are part of the ghostly folklore of the city of Montreal. The only unanswered question is why.