Am I Dreaming?

Son: Oh, Oh, I think this might be a dream. Mom, is this real or is it a dream?

Me: It's real. You are not dreaming.

Son: I don't believe you. I had a dream the other night and you were in it and I asked you if it was a dream and you said no. And it was. I don't know if I can trust you now.

There really is no answer to that, is there......?