One Friday, the Tzemach Tzedek (Rabbi Menachem Mendel Schneerson, the third Chabad Rebbe) exclaimed that Moshiach should finally come.
A bystander commented: Does not the Talmud state that Moshiach cannot come on Friday, before Shabbos?
The Tzemach Tzedek responded that when Moshiach will come and he will answer all of our questions, he will answer this one as well!
Toras Menachem, vol. 2. Pg. 37
 Eiruvin, 43a-b