A man walks into a friend and sees that his friend's car is total loss

A man walks into a friend and sees that his friend's car is total loss and covered with leaves, grass, branches, dirt and blood.
He asks his friend, "What's happened to your car?
" "Well," the friend responses, "I ran into a lawyer".
"OK," says the man, "that explains the blood...
But what about the leaves, the grass, the branches and the dirt?
" "Well, I had to chase him all through the park."