Luke is the KING of "I DON'T KNOW" when you ask him something. Doesn't matter if he knows the answer you want or not. Everything is "I DON'T KNOW"....especially when he's doing something he's NOT supposed to!
Soooo...........Luke is in the den with us and Syd is CRAZY quiet. Luke goes to find her and she comes be-bopping around the corner with a diaper in her hand. Upon asking her what she was doing, she replies....clear as a bell:
"I DON'T KNOW!!!"