My doctor asked, “Do you know why you have such terrible posture?”
I said, “I’ve got a hunch.”

He gave me some advice about my posture. So now I stand corrected. 

An old woman visits her doctor, complaining of back pain.

The doctor tells her, "It's old age."

The woman says to the doctor, "Well, I want a second opinion!"

To which the doctor says, "Fine, you're ugly too!"

I’m stuck inside with this back pain. Does that make me an introvertebrae?