Katie Finneran in The Receptionist. Photo: Joan Marcus It doesn’t take long to figure out that there’s something not right in The Receptionist . At the start of Adam Bock’s 2007 play — now in a revival at Second Stage directed by the fluent-in-menace Sarah Benson — a soft-spoken man chats with us about fly-fishing. He’s got an amicable, uncool-dad energy: bad tie, mustache and rimless glasses, white tennis shoes with his pleated work slacks. But why can’t he finish certain sentences? And why is