"I thought you looked like a policeman.

I think so now." "Did I take a policeman's hat by mistake out of the restaurant ?" asked Syme, smiling wildly.

"Have I by any chance got a number stuck on to me somewhere?
Have my boots got that watchful look?
Why must I be a policeman?
Do, do let me be a postman." The old Professor shook his head with a gravity that gave no hope, but Syme ran on with a feverish irony.
"But perhaps I misunderstood the delicacies of your German philosophy.
Perhaps policeman is a relative term.

In an evolutionary sense, sir, the ape fades so gradually into the policeman, that I myself can never detect the shade.

The monkey is only the policeman that may be.