He can't help being excitable.

I woke mother up, and asked her to sit with him till he went to sleep.

It isn't his fault.

He's no trouble when he's left alone." Mr Verloc made no comment.
"I wish he had never been to school," Mrs Verloc began again brusquely.
"He's always taking away those newspapers from the window to read.

He gets a red face poring over them.