Brandy with milk

Owned a dairy farm, a boy lived with his mother who was kind of sick. And the doctor, he called him over and said "Your mother, just lying there, she's just so sick and she's weakly I want you to try to persuade her to take a little brandy. Just to pick her spirits up." "Ma's a teetotaler," he says, "she wouldn't touch a drop." "Well, I'll tell you what you do", said the doctor "you bring in a fresh quart of milk every day and you put some brandy in it." So he did, and he doctored it all up with the brandy, fresh milk and gave it to his mother, and she drank a little bit of it. So next day he brought it in again, and she drank a little more. And so then, it went on that way, the third day just a little more and the fourth day she took a little bit more. And then finally, a week later, he gave her the milk and she just drank it down, she swallowed the whole thing. And she called him over and said "Son, whatever you do, don't sell that cow."