Am I like . . .

that extra radio station you keep dialed in to your car? The one you only switch to when there are nothing but commercials all of the other channels to which you normally listen? Have you only included me in your group because I came in with less static or perhaps you ran across me first? And you don't mind that when you flip to me in a crunch -- every time I'm playing Rod Stewart. You always stay until something better comes along. I fill in the dead air -- the empty space -- so you don't feel guilty listening to me on occasion when you've nothing better to do.