But every night in his bath he forgets. He points to the smoke stack on his boat and says, "choo-choo." We then explain to him that it has a smoke stack like a choo-choo, but it is a boat. He looks at us and says, "boat." We congratulate him on being the smartest baby in our house.
He says "boat" for a while, until he is certain we are complacant. He then gets a devilish look in his eyes and gleefully says, "choo-choo," while pointing to the smoke stack. You see, he'll pretend it is a boat for our benefit, but he really knows that what we call a boat is some sort of deformed choo-choo. Besides, if it really was a boat, it wouldn't make choo-choo noises as he pushed it around the bathtub, now would it?