Donald , I have passed many accidents and have worried about the casualty . Its disturbing seeing someone hurt , and it plays on ones mind . Asking if someone is ok is kind and considerate , there is nothing sinister about it . If I watch the news and someone has been hurt , kidnapped etc , I hope for a happy outcome as I know they have family who must be beside themselves and it plays on my mind what they must be going through . I don't think your friend would appreciate strangers turning up asking how he is when paramedics are working on him , or at his hospital bed , I think strangers asking if he is ok is caring enough to show that they are worried and they hope he is ok with no lasting ill effects .