Actually, I've never seen anyone get the answer write to "why are 
manholes round."  I almost hope they ask me that at my next job 
interview, because the interviewer probably doesn't know either. ;-)

-- 
   Darren New / San Diego, CA, USA (PST)
     "That's pretty. Where's that?"
          "It's the Age of Channelwood."
     "We should go there on vacation some time."

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