Monty Python demonstrates:
The only quibble I have with their tutorial is that I’ve never had to pay for one of these arguments — the disagreeable chap as portrayed by John Cleese tends to show up at your door unbidden, calling you by the wrong name and ignoring your wife entirely, completely fail to make any sort of point, then scuttle off and claim victory behind your back just when you were starting to get warmed up. Thankfully, at least, he didn’t charge me a pound each for the combination of argument and abuse I got. That’s like four bucks! And the bugger owes me a coffee, now, too. Doubt I’ll ever collect. Lousy welcher.