Safari Adventure

John came back from a safari in Africa. Upon arrival, he went to his
friend Mark, and told him of his adventures.

"I was out in the jungle," he said, "when all of a sudden I heard a
noise in the bush behind me. Looking back, I saw a huge lion, licking
his chops, and smiling at me. The lion started coming my way and I
started running, with the lion not far behind. When the lion was almost
at my neck, he suddenly slipped, and I got ahead a bit. The lion started
gaining on me, and as he got
closer, once again he slipped. I happened to see a house not far away,
and made towards it. As I got close to the house, the lion was almost on
top of me, when he slipped for a third time. With the very last bit of
strength, I ran into the house and closed the door in the lion's face."

"That's some story there, John, I would have messed my pants."

"Well, WHAT DO YOU THINK THE LION KEPT SLIPPING ON...???"