Drop the past and be true
Let us assume a fully grown, completely healthy Clydsdale horse has his hooves shackled to the ground while his head is held in place with thick rope. He is conscious and standing upright, but completely immobile. And let us assume that - for some reason - every political prisoner on earth (as cited by Amnesty International) will be releseased from captivity if you can kick this horse to death in less than twenty minutes. You are allowed to wear steal-toed boots.
Would you attempt to do this?