The Valve

Ernest has had heart trouble for years.
The doctor says it’s something congenital, but eating pork and bacon as often as Ernest does doesn’t help matters much.
So, he’s getting a heart valve replacement.
“One of them mechanicals?” asks Ernest.
“Actually, you’re a good candidate for a transplant from a pig’s heart,” said the doctor.
Ernest thinks for a bit. “Good, but one thing, doc?”
“What’s that?” asks the doctor.
“For as much as I’m paying, I should get the rest of the pig,” he says.
Three weeks later, he roasted it on a spit to celebrate leaving the hospital.