Player protests during anthem

[Scrapper1]

I posted this in the basketball forum, but I'm interested in the insights here as well.

With all of the attention on player protests during the national anthem recently, have you ever had to deal with this at a game? What would you do, if anything, if a player (or team) took a knee during the anthem?

This happened in my area last season and the school stopped playing the anthem before games.

I've had officials tell me that if a team took a knee, they would refuse to officiate the game and leave the venue.

So, has this happened in one of your games? What would/did you do in such a situation?