Rav Aharon Soloveitchik was very afraid for his children when they were near train tracks. He would make sure they stood far away. [For the record, when I take the subway (which happens often here in Israel:-)) I keep my distance from the tracks b/c you never know if there is going to be some meshugenna there. Read on...].
The reason for this fear is that when he was a boy, a woman pushed him on the tracks and screamed antisemitic words at him. She ALSO fell on the tracks in the process. R' Aharon managed to get up, HELP HER get off the tracks before a train ran her over and saved both of them.
A Catholic priest watched this transpire and came over. He asked the boy what his name is and then asked him for a bracha explaining that he has never seen such a holy person in his life.
