Riker and Carmen set a dinner date in what, of all the Riker-hits-on-women scenes, is quite possibly the most painful to watch. (Its primary competition for the dear-God-make-it-stop prize being his falling into bed with Beata in “Angel One.”) After Carmen boasts about her “most memorable desserts,” and Riker proclaiming dessert to be his “favorite part of dinner,” the crystalline entity showing up to kill everyone frankly comes as something of a relief...