".....his lady in their field of vision."
"OI! Are you looking at what's going to evolve into being my bird?"
A bipedal dinosaur about the size of a German shepherd has been crowned the all-time headbutt champion of the world by Canadian boffins. Researchers in Alberta, following extensive analysis of the skulls of various species which are known to indulge in headbutting, say that the herbivorous pachycephalosaur Stegoceras validum …
"“It’s pretty clear that although the bones are arranged differently in the Stegoceras, it could easily withstand the kinds of forces that have been measured for the living animals that engage in head-butting,""
I assume they weren't overly religious then.
http://www.theregister.co.uk/2011/06/28/blow_2_head_religion/