Remember likewise, that they are a very subtle vermin, for if they in the least suspect what you are about, you cannot catch them… set your great cage out of the way at some distance that the other Rats may not hear them squeak, for that will baulk your sport and occasion them to run away.
Robert Smith, The Universal Directory for Taking Alive and Destroying Rats
Dealing with an infestation of subtle vermin? Robert Smith offers a “method hitherto unattempted,” in which you lure the little beasts into what looks like an exciting rat funhouse. Some assembly required.