Conspiracy theory of the morning

More proof that deer and cows are co-ordinating their attacks on humans, from this reader's letter in the News-Leader, Springfield MO:

On Sept. 17 in Salem, my husband Mike went out bow hunting, shot a deer and went to get his son Mark to help him recover it. He was walking out to the field on a logging road, came up on an injured cow standing in the middle of the road and the cow turned and started charging after him... The moral of this is for all hunters to beware coming out of woods at dark with cows in the field.

Thanks to Ross for the tip-off.