Cows are supposedly dangerous, with 3 people being killed in the UK this year alone as well as numerous deaths overseas. David Blunkett was also reported to have been attacked by a cow although seeing as he's blind how can he be sure it wasn't a disgruntled voter making a moo sound as they kicked him?
The safest method of approaching a cow is to put it between two slices of bread and garnish it with lettuce, ketchup and gherkins, however if you insist on live bovine encounters the this is how to deal with the danger:
By the canal in Nottingham
20 minutes ago