Babies are weird. I suppose a lot of you already know this, but it was news to me. Our son makes an impressive number of strange sounds, which didn't really phase me, until I realized that he does it with his mouth closed...what is he a ventriloquist? How in the world does he manage it? I've even held him up to the phone for people a few times and, yes, it seems odd that he can make those sort of vocalizations with a closed mouth. Also, after he feeds his whole body actually fizzes like a soda. 'whizz popping' never seemed such an appropriate word for gas. I sometimes wonder if he's going to take off like a rocket.