I was on a LAS-PHL redeye last night. When the FA's did their service I heard the pax in the row in front of me (also MCE, they were in row 10) ask for two Bailey's and they were told "We can only serve one. We can only serve so much alcohol at a time." (Doesn't Baileys' have like 1/2 to 1/3 of the alcohol as regular whiskey?) I later heard (I don't sleep well on planes) the FA tell her "Sorry, we don't have any more Baileys."
Seems like this is becomming the ultimate YMMV.