» What's the most horrific thing you've seen?

As seen at work..
I used to work graveyard shift at a gas station located at a busy intersection on a highway that went through the town at a reduced speed. The intersection occurred in the middle of what was a fairly broad S-turn, peaking right in the middle of the intersection and both curving and dropping away on either side.

Drivers would always speed and it was a typical sight to see cars zoom through, misjudge the curve and end up on the center concrete median, all four wheels off the ground as the car beached itself, resting on the oilpan and transmission and requiring the use of two tow-trucks to remove them.

This one night, some git in a Mazda RX-7 convertible flew through the intersection (literally) at 120 kmh, shot over the concrete median just high enough to mostly clear, but one of the rear tires clipped the median sending the car into a Dukes-of-Hazard-esque roll causing the car to land upside down.

The vehicle was moving at such a high rate of speed that it continued to slide upside down for another 220 feet, leaving a great pink smear of blood, flesh and brain tissue along the entire length of the skid. The police and ambulance attendants were all seen heaving into the bushes along the side of the road.
(Fri 22nd Jun 2007, 13:27, More)