Going out to dinner

Going out to dinner with a 3 year old; you would think it would be TERRIBLE!! But Sonia is pretty good at a restaurant. The only complaint that we have is that she wants to sit next to daddy and then next to mommy and then back next to daddy. Musical chairs anyone!!! Then she wants/needs to go to the bathroom. Since she is fully potty trained I usually don't disagree when she has to use the bathroom, BUT when she JUST went not even 10min before it gets really annoying.