I don't know about other people.. but when I witness something like this my first thought is "OMG... that person could have broken her leg". It's not a "ha ha" moment.... witnessing someone getting hurt or a near miss doesn't seem funny to me at all.
I think that's what most adults would think. A child might think it's funny, but not people old enough to be driving those cars who were waiting at the traffic light.... no?