See here for the other rants.
I suppose this is less of a rant but rather a curious observation.
Why is it that these are the only McDonald's food items that are sold throughout the entire day? Filet'O'Fish is a lunch menu item and yet, it's available during breakfast. Sausage McMuffin is a breakfast menu item and yet, it's available during lunch. Who chose these 2 sandwiches? Why these 2? Why not the Big Mac or the Egg McMuffin?
(This applies to Hong Kong McD's only)