A Scotsman, carrying a huge suitcase, has been riding a London bus for five miles along its route, all the while attempting to avoid the ticket collector. Finally, the conductor manages to corner him and tells him to pay up: "You've been on for five miles--that'll be 50p, please, and 10p for your suitcase."
The Scotsman responds: "I ha'not, I want a ha'penny fare, just got on this vera moment."
They begin to argue, and the ticket collector becomes more and more enraged and finally, as the bus is passing over London bridge, he grabs the Scotsman's suitcase, and hurls it out of the bus.
It lands in the river and sinks without a trace.
The Scotsman stands shocked for a moment and says to the ticket collector, "Not only are ya trin' to overcharge me for the ticket -- but now you're gone 'n drowned me boy Jonny."