"My Dad really believed in community and sweetness but the other side of him was incredibly naughty." That's Brian Henson talking about his late father, Muppets creator Jim Henson, in the context of an adult live show called Jim Henson's Puppet Improv. According to this report, the adults-only show at the Edinburgh Fringe Festival would "make Miss Piggy blush". As a fan of Peter Jackson's totally sick Meet The Feebles, I wonder if this is a case of art imitating art imitating art.