I'd say the publican's should provide cheap transport for patrons as a public service and charge a three drink minimum to allay/mimimize costs. Then even the poor wretches that don't drink could sell their pints at the pub at cost to those who do drink and get a night out for cheap and EVERYONE would benefit.

Then again, I am sure someone will find fault with that suggestion. Though, at this point, I don't see how.