First go to: http://http.cs.berkeley.edu/~bh/ and download UCB LOGO. When you get it up and running, type this program in:

to satan
  home
  clean
  setpensize 2
  setpencolor 4
  rt 54

  repeat 5 [ fd 100 rt 144 ]
end

Then from the prompt type: satan

I wrote this procedure to show how evil of a language LOGO is. Please write your local schools and tell them to stop teaching LOGO to small children. It will warp their minds and they'll eventually grow up to be Satan worshippers.. or even worse VisualBasic programmers. Har har :)