Crazy Baby!

I just put Eliot to bed for a nap, and I could hear him wiggling around like he usually does before he falls asleep. Then, suddenly, I heard the noise of his mobile, which is at the far end of his crib, away from where I put him to sleep! I went into his room to discover he had turned 180 degrees, with his feet where his head was, then flipped from his back to his stomach, then turned on his mobile. When did he learn to do all that???

(I'm not going to count this as the official back-to-stomach roll, since I think he got leverage pushing his lags on the side of his crib.)