With CG, I can do more and be sillier. In 'Diary,' there's a scene where they hit a guy with acid, and the camera is never off him, and you see it gradually eat through his skull and get all the way through his brain. That's fun, too.
Football has always been violent. In the early days of the game, they didn't wear hard helmets. They wore soft helmets, which were just designed to protect the ears. In the '40s and '50s they began to introduce hard helmets, which provided much more protection against things like skull fractures.
No electricity, no hot water, no heat - at times, we struggled. We'd wake up in the morning and wash with water we heated on a hot plate. And we'd go to bed at night wearing skull caps, sweat shirts, and gloves.
In the early 16th century the Italian physician Jacopo Berengario da Carpi, a pioneer in the science of anatomy, came up with the idea that perhaps 'brain commotion' was caused by the thrust of the soft structure of the brain against the solid case of the skull.
The brain is suspended in a kind of thick jelly inside the skull, and a helmet can't keep it from sloshing around. If you hit your head hard enough, the brain goes bashing against the walls of the skull.