Hmmmm.

When walking through the house the other day, I spotted Jack's t-shirt on the steps. 

That's odd, I thought.

 

 Then I looked up and saw his pants at the top of the stairs. Now I am starting to wonder...

Unfortunately, I have no answer. He was at school and I was pretty sure he had clothes on when I dropped him off...and Jack is rarely in a hurry for anything. So it will be one of those "Jack" mysteries that are left unsolved.