Funny Joke

Three guys are skydiving and the first guy throws a brick out the window, the second guy throws a stone out the window, and the third guy throws a grenade out the window. When they land they decide to go walk into town, so they are walking down the street until they see a woman crying. The first guy asks, "Whats wrong?" The woman says, "A brick fell out the sky and killed my cat." So they continue down the street then see a young boy crying. The second guy asks, "Whats wrong?" The boy said that a stone fell out of the sky and killed his dog. They continue down the road until they see the man laughing his ass off. The third guy asks, "Whats so funny?" The man says, "I bent down to pick up my news paper and I farted and my house blew up."