We regularly host family for Christmas Day (never seem to get invited elsewhere!)
Without fail, one of them turns up with the hangover from hell, and sits in the corner of my lounge huffing and puffing, looking like death and not participating in the festivities at all.
If I knew I was spending the day with family, I wouldn't go out on an all day drinkathon the day before. These are middle aged relatives I'm talking about, not teenagers. Quite honestly I wish they'd just stay at home in bed!