One of the families in a yishuv on the border of Gaza decided to be mischazeik in keeping Shabbos. For quite some time they had been traveling for Shabbos to another part of the country in order to keep Shabbos properly, in an appropriate atmosphere. On Simchas Torah they happened to be home, but the terrorists skipped over their home.
Later, it was discovered that the evil ones had come equipped with exact lists of how many people were in each of the homes. Near the home of that family, they wrote “empty,” since by then it had been a long time since anyone had been seen in the house on Shabbos. Keeping Shabbos saved their lives.