Yeah feeding some sort of suppliment should help. As someone else said, remain calm in the showring. I have had calves that refused to face the way all the others face in the ring, or they push you up in a corner, and demand to stand there. Also, I have had calves that will not let the judge go around them to inspect them, the calves would turn their butt around constantly and not stand in one place. If you show them enough they should get used to this, but in the meantime, just stay relaxed when they are having a fit in the ring. And circling them around trying to get them to stand is only going to make them worse. Let them go where they want, and just remain with them without obstructing or ruining someone else's experience in the showring. This type of reaction also gets recognized in showmanship competitions because judges see that you can HANDLE a situation, even when your calf is being an arse!