Related:

• Ettorre's Observation The other line moves faster.
• The other line moves faster. -- Ettorre's Observatio
• The other line moves faster.
• The other lines move faster. -- Ettore's Observation If you change lines, the one you just left will start to move faster than the one you are in now.
  -- O'Brien's Variation on Ettore's Observation Switching back screws up both lines and makes everybody angry....
• The other line moves faster. Etorre's Observatio
• Etorre's Observation: The other line moves faster.
• The other line is always shorter. The other line always moves faster.
• If you change lines, the one you just left will start to move faster than the one you are now in.
  O'Brian's Law...
• Principle of Dynamic Queuing Theory: The other line always moves faster.