Football is an absolutely idiotic pastime by any rational standards. You're running into other people as hard as you can, you get frequent muscle strains and ligament tears, and the protective padding really doesn't do all that much to absorb the blunt trauma.

Beautifully Unique Sparkleponies: On Myths, Morons, Free Speech, Football, and Assorted Absurdities (ed. Little, Brown, 2013) - ISBN: 9780316236768