Polite.
Rand has started saying "Bless you!" to himself when he coughs.
He also thanks himself and says "You're welcome" to himself on a regular basis.
In other news, he has figured out how to open the front gate by standing waaaay up on his tippy toes. I was thankful that he wasn't tall enough to unlock it so he couldn't escape. Then this morning I came out and he had pushed his little chair over to the gate and was standing on it fiddling with the lock. Phooey!