I thought this mystery was already solved.
A blonde heard that milk baths would make her more beautiful, so she left a note for her milkman to leave 15 gallons of milk. When the milkman read the note, he felt there must be a mistake. He thought she probably meant 1.5 gallons, so he knocked on the door to clarify the point.
The blonde came to the door and the milkman said, “I found your Note to leave 15 gallons of milk. Did you mean 1.5 gallons?”
The blonde said, “I want 15 gallons of milk. I’m going to fill my bathtub up with milk and take a milk bath”.
The milkman asked, “Do you want it pasteurized?”
The blonde said, “No, just up to my boobs.”