"Who goes there?" called the sentry at the sound of approaching footsteps.
"Coldstream Guards!" was the response.
"Pass, Coldstream Guards!" rejoined the sentry.
"Who goes there?" again challenged the sentry.
"Forty-ninth Highlanders!" returned the unseen pedestrian.
"Pass, Forty-ninth Highlanders!"
"Who goes there?" sounded a third challenge.
"None of your d—n business!" was the husky reply.
"Pass, Canadians!" acquiesced the sentry.