Right. Just as...
Anyone who's ever gone to a movie theater knows your ears listen to your cell phone ringing, because you're a self-absorbed, need-to-be-wired narcissist.
Or do you turn it off, because you respect other people?
If you have a seat along the foul line, then you need to bloody well realize that you have an ethical obligation to keep your two clutching, overreaching, needy little hands out of the field of play, and let the professional athletes do their jobs.