Because regular folk have to work on Monday, it's wiser to start drinking on Sunday afternoon so you'll be wasted early and can go to bed in time.
Starting to drink too late on Sunday could seriously effect your appetite for
MND, TND, WND, ThND and/or FND and that would be sad...
B: Sure, but let's make it a SAD, I'm not a sad jobless tosser like the rest of your friends.
A: Noon then?
B: Noon it'll be.
2) Of a miserable state and unenviable lifestyle.
Medical condition pulled out of the ass of a phyciatrist as an excuse for bad parenting, without saying it.