would pay in the fares of fourteen "longs" and seventeen or eighteen "shorts." To unravel this mystery the proprietor persuaded a relation, who unknown to the 'busmen, to ride in a certain omnibus on the same journey as his "spot," and check who was really right. This man's reports agreed with the "spot's." Both declared that the conductor had collected less money than he paid in. The amateur "spot" then rode two journeys in that omnibus when the professional man was not there, and on those occasions it was found that the conductor paid in only about three-quarters of the money he received. Eventually the conductor was arrested for fraud, and confessed how he had been working his omnibus. He had bribed the proprietor's clerk to tell him who the "spot" was, and where he could be seen. As soon as he had received that information, and taken a good look at the man, he felt that he was safe from being detected in his fraud. Whenever the "spot" rode in his omnibus, he paid in more than he received, relying upon getting back the extra money, and a good bit more, on the journeys when the "spot" was not present. Why he did not remain satisfied with simply paying in the exact amount he took on
