The Pledge of Allegiance to the Flag of Texas. Yes, they say it every morning, and I don't have a big problem with it, it just surprised me. I didn't grow up here, I didn't know there was such a thing. The amount of pride people in this state have is astonishing. Maybe it's because I'm from a stateline area where we had both Packer fans and Bear fans under the same roof, or because the closest I've come to learning any songs about Illinois when I was young was playing our copy of The Super Bowl Shuffle 45 over and over until my Mother's ears bled.
Line dancing. They are doing it in gym class. Again, I have no objection and in fact when I was a kid we learned square dancing in gym class. I always wished we could've learned some break dancing moves instead. She's actually getting the best of both worlds in that she's learned the Cha Cha Slide which is sort of a hybrid of line dancing and hip hop (sort of.) Regardless, much cooler than a do-see-do.
"Y'all" not only is it used at school but Dan actually encountered it in a memo at work. We don't hear many accents here in the city, but "Y'all" is everywhere.