Last time I was at WDW, and in the crowd after the parade, standing still, waiting my turn to leave the park, and somebody in a wheelchair rolled right over my foot. I said "ouch, that hurt", and the person rolling the wheelchair gave me this "deer in the headlights" look, as if it never occurred to her that rolling a 70lb wheelchair containing a 300lb person over my little, size 6 1/2 foot might hurt. Courtesy goes both ways, and actually, after a parade, everybody leaving the park is as anxious to leave as anybody else. Being in or pushing a wheelchair (or stroller, but wheelchairs are worse) isn't carte blanche to use it at a battering ram to get through a crowd faster. Just glad it wasn't my 8yo son's size 3 foot, or mother bear would have been released from her cage.