5 minute rule
A variation of the 5 second rule, which dictates that food dropped into an awkward or uncomfortable place is still edible if retrieved within five minutes. Often conceived to be a more chivalrious instead of just plain ol' disgusting, especially if a man retrieves food dropped by a woman and eats it himself, replacing her loss with something that didn't touch the floor. It is also a more applicable rule than the 5-second variation when the moment of dropping the food is particularly ironic and demands a short pause for the appreciation of the twistedness of the world.
1.
Girl: "No! I dropped my Mars-bar behind the computer desk! T_T"
Boy: "Here, have mine, I'll invoke the 5 minute rule." Boy proceeds to fish the Mars-bar, and emerges victorious after a few minutes of shuffling under the desk.
2.
Dropper: "...so I was late to get up, my car was stolen, when I got to work my boss said not to come in if I can't get there in time, and-- here I go, dropping my sandwich on the floor. Perfect." Dropper stands still for a moment before picking up the sandwich.