I have fun with every Klein bottle order.  When someone buys a Klein bottle, I celebrate by walking through our backyard garden, looking for new blossoms.  I usually take a few photos and send these to my customer-friend.

  This micro business puts me in touch with fascinating people (I've met kids in elementary school, grad students, Nobel laureates, even a delightful nut who made a 4-meter tall wooden Klein bottle for Burning Man).  The kind of people you find here on Hacker News.

  PS - with reference to your HN identity -- from my ham radio days of long ago, I once experimentally determined that a 1/2 watt, 600 ohm Ohmite resistor would burn up when inserted in a 120V outlet.  Hmmm: 24 watts into a half-watt resistor?  Yep, filled the room with that acrid smell...   Don't try this at home.

I imagine him as someone who just sits around hacking all day, writing up long essays in between fulfilling orders.