Owen and the Big Tent

Owen at 2 yrs, 11months:  going into his room upon hearing silence at naptime, but not the complete silence of actual sleep, I find his bed empty, but a curious motion of the wooden window blinds.  Then, the shape of his shadow behind them emerges.  He is balanced precariously, standing on the narrow sill (~2-3 feet off the ground), grasping the sides of the window frame, behind the blinds.  I say, 'NO SIR!' and he is so startled he nearly falls at the shock of having been found out...all the while saying, 'Why can't I, Mommy?  Why can't I do dat?'

Context:  Yesterday was a big day for him.  Train, then subway rides into the city to see the Big Apple Circus with Nunu.  He was impressed.  This morning when he woke up he told me ALL about the wonders he saw, especially Bello and Grandma the clowns, who were *not* scary, mommy (he had been worried about scary clowns ahead of time).  And, the cotton candy got an honorable mention. 

Do we think the scaling of the window is related to watching a whole lot of acrobatics the day before?  Or just the natural progression of preschool explorations?  I guess we'll never know.  I do know he was apparently so worn out that he actually accepted me rocking him to sleep today (something I never did for him, but now he will never, no never, independently lie down and go to sleep for a nap, no matter how tired).  Aaah, a break!  What am I going to do when my parents leave?  Not only the kids, but I have been spoiled by the extra hands around the house!!