Once when I was at university (the one that definitely isn't Oxford, as it happens) the college second rugby XV, of which I was a member (generally known as The Happy Hooker), played the University Welsh Society. We had a barrel of ale by the side of the pitch and by agreement the game was divided into quarters instead of halves so that the assembled company, plus any spectators who fancied a drop, could duly partake. We "played" the full 80 minutes too. Happy days. 🙂