Cue up the laugh track! Comedian Melville Snelson doesn't know how many oxycontins he took. (Laughter) His shows are bombing. (Laughter) His website is attracting trolls who threaten violence. (Laughter) A comic he identifies with just committed suicide. (Laughter, applause) Time for a near-death experience with the possibility of a fatal encore. (Crickets) Plus: prose & pix, AHOY-style