Bear Talk

Bear, at bedtime: "Are there Martians in real life?"
Me: "No, I don't think so."
Bear: "How do you know?"
Me: "Well... If they do exist nobody has ever seen one."
Bear: "Maybe they are hiding... maybe, em, they went to out of space?"
Me: "Out-of space?"
Bear: "Yeah. Out of space."
Me: "How do you get to out of space?"
Bear: "I think a portal maybe."
Me: "Oh. OK."