And, as the court jester, you can ask the stupid questions that everyone is thinking. Clowning turns out to both put people personally at ease, and stir things up politically. In Native American culture, Randerson says, clowns are valued for creating order through disorder by being "unafraid to say what needs to be said. If something is robust enough to withstand clowning, then it is a strong thing."
One clown method is to turn dominant ideas on their head. Where most of us may be looking for ways to do less work and make more money, a clown might ask: "How do I do more work and make less money?"
If you start thinking about reasons why anybody would want to do that, then the clown has done his or her job. Fearlessness - of looking stupid, of saying hard things - is a big part of being a clown. It's about letting your body "just go before your mind says 'that's a dumb idea"'.
Art, for Randerson, is at least as physical and intuitive as it is brainy: "Art is a way to help us release the truths we don't know that we know."
In a seeming irony, this woman talking of the importance of the body is one of the more intellectual creatives I know of. She has a jackdaw curiosity - collecting ideas and quotes everywhere she sees them, from physicists and historians as well as novelists such as Graeme Greene and Janet Frame - and it's her drive to learn new things that leads her from one creative medium to the next. But in the end, it's not paradoxical, because being in touch with one's physicality doesn't mean one has to let go of the smarts.
Instead, Randerson's inquisitiveness has led her to dance - she co-created Hullapolloi in 2011, and next month, on October 12 and 13, Aucklanders can finally see Maria Dabrowska's 2009 work Carnival Hound at the Tempo Dance Festival, which Randerson directed.
Bring your eyes and ears - and maybe your funny moustache.