Cow tipping
Cow tipping or cow pushing is the purported activity of sneaking up on a sleeping, upright cow and pushing it over for fun. As cattle do not sleep standing up, cow tipping is a myth. A study led by Margo Lillie, a doctor of zoology at the University of British Columbia, concludes that cow tipping by a single person is impossible. Her calculations found that it would take at least two people to apply enough force to push over a cow if the cow does not react and reorient its footing. (via Andrew Wakeman)
