In the words of the Shach al HaTorah השיב ולזה ,הילדים על אלא שאל לא וכששאל בנשים עיניו שנתן חושדו שאינו עצמו עשה יעקב הילדים על, "Yaakov pretended that he didn't suspect that he was looking at the women, rather that when he asked his question, he only asked about the children. This is why he only answered him regarding the children."
5. The Gemara (Brachos 61a) states, אשה אחורי ולא ארי אחורי, "Better to walk behind a lion than to walk behind a woman." The Imrei Noam, quoting the Vilna Gaon, writes that when a person walks behind a lion, he is transgressing the aveirah of תרצח לא, murder, because he is placing his life in danger. Nevertheless, that is preferred over walking behind a woman and transgressing תנאף לא, the sin of arayos.
Reb Zelmele of Volozhin zt'l (student of the Vilna Gaon) would walk on the side of the street, where the dirty, sewer water ran. He preferred to walk there, than to walk in the middle of the street. People asked him about that (because he would likely transgress the aveirah of studying Torah in the presence of a foul odor. He was so attached to Torah, it was almost impossible for him to stop thinking Torah.) He answered, based on the Gemara above, that it is better to walk behind a lion than behind a woman. Women walk in the middle of the street, and therefore, he preferred to walk on the side. Although he will probably transgress the aveirah of thinking Torah where he shouldn't, he considered this better than having to walk אשה אחורי.
I heard the following story from one of Reb Wosner's zt'l grandchildren, who heard the story from the baal hamaaseh: One of Reb Wosner's students lived in London. He wanted Reb Wosner to be present when his son put on tefillin for the first time. He wanted his son to have the privilege of the gadol hador placing the tefillin on his arm and head. Months before the bar mitzvah, he called Reb Wosner to tell him his plans, and asked permission to come with his son. Reb Wosner agreed conceptually, but asked that he call him again a week before the bar mitzvah. When he called back shortly before the bar mitzvah, Reb Wosner told him not to come. The man said that his son would be very disappointed. He was certain that he was going to Bnei Brak, and the posek of the generation would wrap him in, with kedushah and taharah. Reb Wosner replied that the airports have great tests for shemiras einayim. Whatever the boy will gain by putting on tefillin with him, will be lost due to forbidden sights. The father said that he had already bought tickets for him and his so. Reb Wosner replied that even so, it
