Pigs is Pigs

Mike Flannery, the Westcote agent of the Interurban Express Company, leaned over the counter of the express office and shook his fist. Mr. Morehouse, angry and red, stood on the other side of the counter, trembling with rage. The argument had been long and heated, and at last Mr. Morehouse had talked himself speechless. The cause of the trouble stood on the counter between the two men. It was a soap box across the top of which were nailed a number of strips, forming a rough but serviceable cage. In it two spotted guinea-pigs were greedily eating lettuce leaves.
"Do as you loike, then!" shouted Flannery, "pay for thim an' take thim, or don't pay for thim and leave thim be. Rules is rules, Misther Morehouse, an' Mike Flannery's not goin' to be called down fer breakin' of thim."
"But, you everlastingly stupid idiot!" shouted Mr. Morehouse, madly shaking a flimsy printed book beneath the agent's nose, "can't you read it here-in your own plain printed rates? 'Pets, domestic,