I feel like this is a global thing but here it goes
When serving dinner the women are served first, then the men.
They do this from oldest to youngest.
So, first person to get food/wine/water/wtv served is the oldest woman, and the last person to be served is the youngest man...
Edit: I got the tittle wrong I thought it was only formal setting stuff.
This is only done in very formal settings. Like an extremely important ceremony on the military branches of my country for instance.
This is me yesterday... And other days...
And then I can't fall asleep because I am too worried that I should be asleep already and that I have to wake up early. This causes my absolute favourite feedback loop.
Portugal