The quote Lee Radford came out with regarding Liam Watts' head-butt springs to mind...
"It was a pathetic attempt at a head-butt first and foremost and it was a crazy time to do it and crazy to anything like that in any game as well."
2 games is enough. If he'd stood in front of him and butted him square in the face then he'd deserve much more but it was only slightly worse than what goes on in tackles when the tackler pushes his head in the face of the person he'd tackled.