Wednesday nights in lower Manhattan’s SoHo district have gotten a little saner. The Housing Works Bookshop Café, which donates 100% of its profits to Housing Works, Inc., a social enterprise, is offering psychotherapy to its customers and neighborhood denizens in three-minute doses for those whose therapists are on vacation or who require a quick jolt of personal problem advice.You’d think that three minutes wouldn’t allow enough time for introductions much less delving into the dark recesses. But Jonathan Fast, one of the eight psychiatrists and psychologists who staff these Wednesday nights and who is also a professor at Yeshiva University,...