Nagle Jackson is known as a classical kind of guy -- an intelligent translator and a witty and incisive playwright. So it wasn't a surprise when he staged a lucid production of Molière's The Misanthrope for the Denver Center Theater Company. But who expected him to follow with a wildly controversial contemporary drama about a guy shtupping a goat? Jackson pulled off The Goat or, Who Is Sylvia? for Curious Theatre Company with both energy and style.