There's a fox in my room?

Unreasonable 2yr old fear number two has surfaced.

This may even rival his obsession that the wind was going to blow us, and everything we hold dear, away... I think it was due in part to watching Mary Poppins (the scene where the nanny interviewees are blown away by the same wind that brings Mary Poppins to the Banks home).

He thinks that he saw a fox in my bedroom. He points out the exact spot it was standing in and even describes it, orange in color... etc. I calmly talk him through all the possibilities: it could have been our dog Cooper (who is an orange Brittany Spaniel), it could have been a dream, foxes can't get into our house, they live in the country, they're actually scared of people and dogs... but he still insists that it was there, and is still in there somewhere. He keeps closing the door so that it won't get out and doesn't want to go in there. We talk through this many times a day.