Smooth Descent

Freddy came thundering down the stairs, much to his father's annoyance.
"Freddy," he called, "how many more times do I have I to tell you to
come downstairs quietly? Now, go back upstairs and come down like a
civilized human being."

There was a silence, and Freddy reappeared in the front room.

"That's better," said his father, "now in future will you always come
down stairs like that."

"Suits me," said Freddy. "I slid down the railing."