I phoned the dentist the other day to ask about how much money it would cost to pull out a tooth that was causing extreme pain. "£80 said the dentist "£80? Thats far too much" I told the dentist "Well that's the normal charge" "Well what about if you didn't use any anaesthetic?" I enquired "It would would be painful but I could knock £20 off the price" "And if you got one of the trainees to perform the procedure would it make it cheaper?" I asked "Well it wouldn't be a very professional job because he's not fully trained and it would still be painful but I could take another £20 off the price" explained the dentist "Excellent and finally you could make it a training exercise and get all the other students to observe it and learn about it" I said "That's a good idea it'll be good training for them but it'll be traumatic having all those people in the room while it's happening but I'll take £30 off if that can happen" said the dentist "Aw superb mate, so can you book an appointment for my wife next Wednesday?"