The liver is connected to the funnybone

Reba McEntire said, "To succeed in life, you need three things: a wishbone, a backbone and a funnybone." Although I agree with her, she left out the liver. You can't live without a liver. In fact, the word live is liver, which is basically the same word as liver, isn't it? Okay, I am really stretching here. It's not easy trying to find funny things to say about the liver. Have you ever heard a Knock, Knock joke about the liver?