But how are men chastised?
Septimus had no experience.

He reflected vaguely that people did this sort of thing with a horsewhip.

He speculated on the kind of horsewhip that would be necessary.

A hunting crop with no lash would not be more effective than an ordinary walking stick.

With a lash it would be cumbrous, unless he kept at an undignified distance and flicked at his victim as the ring-master in the circus flicks at the clown.