Ugh...that is disgusting! Just horrible.
I just can't imagine how that poor man felt (if he was even concious).
I remember when I was really young my mom, brother, and I were walking on some back roads to my brother's boy scout car derby thing. and we were walking on some messed up sidewalks, and my mom tripped on one and fell and broke her arm. People ran to her immedietly, and it makes me sad to think that now (just about 8 years later) most people wouldn't even blink an eye.