title: Why doesn't this always create a triangle?
body: <p>I would expect this code to create a triangle each time, but instead many
  times it goes through the wrap-around, creating a zigzag line or 
  disconnected angle pieces.  Why is that? Is it a bug?</p>
  
  <p>Create a go button (not a forever button) to run this code</p>
  
  <pre><code>to go 
    clear-all 
    create-turtles 3 
    ask turtles 
      [ setxy random-xcor random-ycor
        create-links-to (other turtles)] 
  end
  </code></pre>