Here is Crispin Glover’s infamous interview with David Letterman on “Late Night With David Letterman.” Despite Glover’s bizarre behavior here, he later admitted he was trying to do a tribute to some of the brilliantly demented appearances Andy Kaufman had on Letterman’s from the early 1980s.  The only problem with Glover’s tribute was that Letterman wasn’t in on it.  And Letterman was clearly disturbed by what went down, as evidenced in Letterman’s commentary after Glover “left” the show.   This may seem relatively tame these days, but back in the day, this appearance, along with Glover’s performance in the brilliant film “River’s Edge” and a demented Spin Magazine profile from around the same time, created a mini-cult amongst my friends for Glover for many, many years.