Is That How It Works?

Last night the weirdest thing happened. I woke up at 3 am and heard Desmond talking in his crib. First of all, he is my first child EVER to actually sleep in his crib! He loves it, and even takes naps in it. But this is the really weird part...I went into his room, and didn't say a word, but picked up his binky and put it in his mouth, AND LEFT! I have always always always in the past, picked up my babies, taken them to bed with me to feed them, where they spend the rest of the night. So after I left, I stopped in the hallway, waiting for him to start crying or something, but he DIDN'T! I paused again just outside my bedroom door, but heard nothing. Once I was in bed, I started freaking out that perhaps I just couldn't hear him, so I went to check again. He was asleep. And he stayed asleep until about 7:30 this morning. Why has it taken me 5 children to learn this!? I guess that some of us are just slow learners.