By now you've probably heard about this guy in Paw Paw, Michigan:
He rolled his wheelchair into the path of a semi tractor. When the semi struck the wheelchair (at low speed), the wheelchair handles became lodged in the truck's grill. After a 50mph ride stuck on the front grill, the semi was pulled over by police and the Mr Wheelchair guy was rescued unharmed.
But check out the 911 calls: WGRZ story Plus 911 calls
Specifically listen to call number 3. This is the sort of caller who justifies my pay. It's also a great example of "you don't know how you are going to react during an emergency until one happens."