I guess they feel really sorry for the person but are at the same time glad it isn't them. Like yesterday, my friend and i were driving to school when we saw a car that was smashed into a telegraph pole surounded by ambulances, police etc. It was a red p-plater just like us, we both felt sorry for her and thought about how scary that would be but at the same time we were like, gee glad it wasn't us. Sounds kinda bad, but i think it's true. People are always comparing themselves with others and are sort of glad when bad experiences happen to someone other than themselves, no matter how sympathetic the are towards that person.