Teddy came thundering down the stairs, much to his father's annoyance.
'Teddy,' he called, 'how many more times have I got to tell you to come down the stairs quietly?
Now, go back up and come down like a civilised human being.' There was a silence, and Teddy reappeared in the front room.
'That's better,' said his father.
'Now will you always come down stairs like that?' 'Suits me,' said Teddy.
'I slid down the bannister.'