CASUALTY

A well-sharp'd pencil leads one on to write:

When guns are cocked, the shot is guaranteed;

The primed occasion puts the deed in sight:

Who steals a book who knows not how to read?

Seeing a pulpit, who can silence keep?

A maid, who would not dream her ta'en to wife?

Men looking down from some sheer dizzy steep

Have ( quite impromptu ) leapt, and ended life.