A Scotsman, carrying a large suitcase, boarded a London bus and spent five miles trying to evade the ticket collector.
Finally cornered, the conductor demanded payment: "You've ridden five miles—that's 50 pence, plus 10 pence for your suitcase."
The Scotsman protested: "I won't! I'll pay a penny fare, as I've only just boarded." An argument ensued. Growing increasingly enraged, the ticket collector, as the bus crossed London Bridge, seized the suitcase and hurled it out of the window.
It landed in the river and sank without a trace. Stunned, the Scotsman turned to the collector and said, "My God! Not only are you trying to overcharge me, but now you've gone and drowned my boy, Jenny!"