And vice versa sometimes.
Let it be noted that rats live in cages; they do not go on binges the night before one has planned an experiment; they do not kill each other off in wars; they do not invent engines of destruction, and if they did, they would not be so inept about controlling such engines; they do not go in for either class conflicts or race conflicts; they avoid politics, economics, and papers on psychology. They are marvelous, pure, and delightful.
Edward Chace Tolman (ca. 1945)
(is that what you had in mind when you said :''Rats are pepole,too!)