A Scotsman goes to the dentist and asks how much it is for a tooth extraction. "$85 for an extraction sir" was the dentist's reply. "Ouch... huv ye no got anythin' cheaper" replies the Scotsman getting agitated. "But that's the normal charge for an extraction sir" said the dentist. "What about if ye didn't use any anesthetic?" asked the Scotsman hopefully. "Well it's highly unusual sir, could be quite painful, but if that's what you want, I suppose I can do it for $70" said the dentist. "Hmmmm, what about if yer used one of your dentist trainees and still without anesthetics" said the Scotsman. "Well it's possible but they are only training and I can't guarantee their level of professionalism and it'll be a lot more painful. I suppose in that case we can bring the price down to say $40" said the dentist. "Och... that's still a bit much, how about if ye make it a trainin' session and have yer student do the extraction and the other students watchin' and learnin" said the Scotsman hope
fully. "Hmmmmm, well OK it'll be good for the students I suppose, I'll charge you only $5 in that case" said the dentist. "Now yer talkin' laddie! It's a deal" said the Scotsman. "Can you confirm an appointment for the wife on Tuesday?"