Courtesy of The Choirboy's tireless surfing of the Irish news, I yesterday received a link to this item in the Irish Times. I learned that Dr Jason Bourke (no, not Bourne) has set up a visiting 'hangover cure' service in Las Vegas. Just get on the bus, Gus - for some intensive rehydration.
I think the PSB should rip off the idea and start running one of these around Sanlitun in the early hours of Friday and Saturday mornings. Willingness to request 'the cure' could reasonably be taken as proof of excessive drunkenness in public, which is clearly "disrespectful" of "China's laws and customs" (if not actually illegal). The bus could then run straight to the airport as a Deportation Express.
Luckily, I don't get hangovers. Nor do I get indecently drunk in public. (Well, not very often.) Nor do I frequent Sanlitun. At the moment, however, such virtues are not sufficient to protect one from being arbitrarily thrown out of the country.