Reference for Bava Kamma 169:10
במאי קא מיפלגי אמר רבה אשכחתינהו לרבנן בבי רב דיתבי וקאמרי הכא במכה ניתנה לאגד קמיפלגי
But even [if the calculation be made on the basis of] a mutilated arm, would it amount only to Pain and not also to Pain plus Degradation, as it is surely a humiliation that a part of the body should be taken away and thrown to dogs? — It must therefore mean that we estimate how much a man whose arm had by a written decree of the Government to be taken off by means of a drug would require that it should be cut off by means of a sword. But I might say that even in such a case no man would take anything [at all] to hurt himself [so much]? — It must therefore mean that we have to estimate how much a man whose arm had by a written decree of the Government to be cut off by means of a sword would be prepared to pay that it might be taken off by means of a drug. But if so, instead of TO BE PAID should it not be written 'to pay'? — Said R. Huna the son of R. Joshua: It means that payment to the plaintiff will have to be made by the offender to the extent of the amount which the person sentenced would have been prepared to pay.