We're hosting a day time party for a large group of friends. We're generous hosts but last year one couple used the opportunity to drink a lot more then everyone else.
From a few recent comments I know that booze dominates their lives: not-drinking nights, hiding drink, last minute supermarket runs, the 'horror' of accidentally buying low alcohol wine, etc
How can I 'contain' their consumption whilst not denying the larger group or am I being an unreasonable host and I should just see it as the price of their company?