Almost went into labor today!

Adan nearly caused me to go into labor today... well, maybe not for real, but it sure felt like it!!! I went outside while I was making a phone call. Less than 3 minutes later, I noticed the little booger laughing at me from the door. I tried to open the door and lo and behold he'd locked the deadbolt! I was LOCKED OUT and he was LOCKED IN!!! I kept asking him to 'open the door, Adan.' He'd reach up to the deadbolt, all the while looking at me. As soon as he'd reach the lock, he grab his hand away really quickly. Then he'd crack up laughing. Yeah- really funny!!! I called Miguel and he sped home. Luckily Adan was very interested in watching me watch him, so I kept sliding things under the door to keep his interest. He didn't seem worried at all. Poor Ollie was VERY confused and kept jumping up on the door, whimpering. In less than 15 minutes, Miguel made it home and saved the day. Adan thought it was hilarious. Now we know that he can lock and unlock doors, we're worried about him getting out on his own. Tomorrow we're going to install a chain-lock at the top to be safe. How in the world is an 18 month old able to do this??? And I'm gonna have another one just like him. Life is about to get interesting!!!!