The mind of a child

As the preschooler and I sit watching one of his very favorite shows, I am reminded of a couple of thoughts I had as a child. The cartoon just showed the two main characters in a hot air balloon drifting through space and they go through a cloud.
As a child, I was a very frequent flyer. I often had enough miles to earn my own free tickets. At about age 5 or 6, I clearly remember wondering two things--if heaven is in the sky and we were flying in the sky, why couldn't I see dead people--or at least angels (no Sixth Sense stuff here). My poor mom had to explain that one to me. I remember something along the lines of heaven being higher and a belief in people's heart. However she explained it, it did placate me.
My other thought was, if clouds break apart and make rain, would it rain where ever we were flying? In my mind it stood to reason that the plane would disturb and break up the clouds so that should make it rain. Again my mom had to explain that one- something along the lines of the clouds just moved over to make room for us.
These memories make me wonder what ingenious and incorrigible questions my children will come up with to entertain me and more importantly stump me! I can already tell there will be some doosies.