Why do I keep performing at my age? What else am I going to...

Why do I keep performing at my age? What else am I going to do? Play golf? I tried that years ago and all I did was cuss. I can do that without the walk, cuss at Congress and let [Mark]Twain do it. "Imagine that you were an idiot. And then imagine that you were a member of Congress. Wait - I've repeated myself."