Fuzz's New Favorite Hobby

I'm not sure where this new found obsession came from, but it is all of the closet doors in our house. Not regular doors (although he still loves to open and shut those), but the folding closet doors. After a few times of shutting his finger in the fold, he has for the most part figured them out. I will leave him for two minutes and find him in either his, mine or David's closet. He just opens and shuts them for a good 10 minutes at a time.

I left him alone for a few minutes today while I made his lunch and could hear the closet door open and shut. The closer I got, I could hear him mumbling/talking to himself, but I couldn't tell what he was saying. I finally figured it out when I got into our bedroom...he was playing peek a boo with himself and the closet door. He would shut the door and then wait about 3 seconds, open it and "boo" would come out of his mouth which is his word for peek-a-boo. He repeated this a few times before he realized I was watching him.

The second he realized I was there, it was like he got embarrassed (picture below). Either that or this is the new sh** eating grin that I should probably get used to.