VALENTINE (making a wry face in spite of himself). You seem to have been very carefully educated, Mr. Crampton.

CRAMPTON (grimly). I wasn't spoiled, at all events.

VALENTINE (smiling a little to himself). Are you quite sure?

CRAMPTON. What d'y' mean?

VALENTINE. Well, your teeth are good, I admit. But I've seen just as good in very self-indulgent mouths. (He goes to the ledge of cabinet and changes the probe for another one.)

CRAMPTON. It's not the effect on the teeth: it's the effect on the character.

VALENTINE (placably). Oh, the character, I see. (He recommences operations.) A little wider, please. Hm! That one will have to come out: it's past saving. (He withdraws the probe and again comes to the side of the chair to converse.) Don't be alarmed: you shan't feel anything. I'll give you gas.

CRAMPTON. Rubbish, man: I want none of your gas. Out with it. People were taught to bear necessary pain in my day.

VALENTINE. Oh, if you like being hurt, all right. I'll hurt you as much as you like, without any extra charge for the beneficial effect on your character.

CRAMPTON (rising and glaring at him). Young man: you owe me six weeks' rent.