My dad is honestly embarrassing to be in public with...

I met up with family today to go have dinner out at a thai restaurant. This place will give you a rice refill if you ask. My dad was complaining about how the waitress is more concerned about refilling the "damn water" and not giving us more rice. I told him it's ok we will ask next time she comes back. What does he do? Holds the rice bowl up in the air like he won a trophy. We got more rice but dear lord i was embarrassed. He's the type to flag down people too. We've called him out on it before but he doesn't think he's doing anything wrong.