1. Special food for the crew
In every flight, the pilot is the authority and believe it or not, they do not eat the same food the co-pilot eats. You might think it’s strange but really, the reason why this is observed is that if the pilot gets sick from that food, the co-pilot will have to completely take over the control of that plane.
You can’t afford to have the two pilots both unwell at the same time as this could be risky for all aboard the plane. This rule is taken very seriously to the extent that the two don’t even use the same dishes for eating. So all they can do is crave each other’s food but they can’t have a taste of it.