A woman & a baby visit the doctors.
The doctor is concerned about the baby’s weight. “Is he bottle or breast-fed?” he asks.
“Breast-fed?” says the woman.
He asks her to strip to the waist, pinches & sucks her nipples & rubs both tits for a while, “No wonder he’s under weight you’ve no milk”.
“I know” says the woman “I’m his gran, but I’m bloody glad I came”