Historian Marc B. Shapiro blogs:
R. Moshe Eisemann, who used to have a great deal of influence in the moderate haredi camp, wrote as follows with reference to the Jerusalem fanatics who throw stones at passing cars (not knowing, of course, if the drivers are Jewish or Arab): “If it is true that he who hurls a stone were well-advised to be pretty sure that he is doing the right thing, I believe that the one who feels no urge to do so, must engage in even deeper soul-searching.” Tradition 26 (Winter 1992), p. 34. Maybe I was absent that day in yeshiva, but I was never taught that it is normal to have an urge to throw a stone at a fellow Jew (which of course could kill him, as we have seen with the Palestinian stone-throwers). On the contrary, I was taught that I should have an urge to show the non-religious Jew about the beauty of Shabbat, which an invitation to a Shabbat table will accomplish much better than a rock in his windshield.