"It certainly is very hard upon a Judge, if a rule which he generally lays down, is to be taken up and carried to its full extent. This is sometimes done by counsel, who have nothing else to rely on; but great caution ought to be used by the Court in extending such maxims to cases which the Judge who uttered them never had in contemplation. If such is the use to be made of them, I ought to be very cautious how I lay down general maxims from this bench."