Nothing happens. Cows eat grass and that's all. Once they suddenly started to eat fire but it all came back to normal after a few years, nowdays it is used a lot in every kind of public passive demonstration.

     Some are hiding under the ground of the private garden and that does not make the demonstration easy since it is only possible to walk there by knowing the position of them and avoiding them. Otherwise, the whole place really is a deadly trap.

     Please be careful.