Oklahoma State upset No. 6 Texas Saturday night 38-35, and that may have not been the biggest story of the game.

Late in the fourth quarter with just seconds remaining, Oklahoma State was taking a knee to run out the clock, and a Texas defender received a personal foul penalty. Tempers flared, and Mike Gundy came running on the field to clearly separate his players so there wasn’t actual fight.

Well, that didn’t sit well with Tom Herman, who thought Gundy was running out there to get in the middle of it. Herman, too, ran out on the field to go after Gundy, and he had to be restrained. Herman received an unsportsmanlike conduct penalty.

Here’s the exchange, as Herman was livid:

After the game, however, the two coaches smoothed it over, and Gundy explained he was just trying to make sure “it didn’t get ugly.” You can clearly hear Herman telling Gundy, “You coach your players, and I’ll coach mine.” Thankfully, Gundy was cool and collective about the comment, and the two had a peaceful exchange.