Related:

• Programmers do it top down.
• Flyers do it on top, upside down, or rolling.
• Pilots do it on top!
• Roofers do it up on top.
• Systems go down on their hackers.
• Everything should be built top-down, except this time.
• bottom-up implementation: n. Hackish opposite of the techspeak term `top-down design'.
  It is now received wisdom in most programming cultures that it is best to design from higher levels of abstraction down to lower, specifying sequences of action in increasing detail until you get to actual code....
• Cream rises to the top...so do dead fish.
• TRAMPOLINE ACROBATS do it under the big top