"£85 pounds for an extraction, sir" the dentist replied.
"£85 quid! Huv ye no'got anythin' cheaper?"
"That's the normal charge," said the dentist.
"Whit aboot if ye didnae use any anaesthetic?"
"That's unusual, sir, but I could do it and would knock £15 pounds off."
"Whit aboot if ye used one of your dentist trainees and still without any anaesthetic?"
"I can't guarantee their professionalism and it'll be painful. But the price could drop by £20 pounds."
"How aboot if ye make it a trainin' session, ave yer student do the extraction with the other students watchin' and learnin?"
"It'll be good for the students", mulled the dentist. "I'll charge you £5 pounds but it will be traumatic."
"Och, now yer talkin' laddie! It's a deal," said the Scotsman. "Can ye confirm an appointment for the wife next Tuesday then?