Limiting the number you can carry out to one would also put people off throwing their pint up in the air (notwithstanding your previous post on why that might be less likely anyway).
I'd also limit the number of pints that could be carried out to just one per person to stop any idiots taking the piss and surrounding themselves with pints (something I definitely do at cricket).
That story relates to people being allowed to bring their own alcohol into Lord's, and relatively early closure of the bars, due to the intention to create a happy-clappy atmosphere suitable for the whole family at Hundred matches. As far as I know there's not been anything that would be...
Possibly less likely to have to go for a wee if people can take their drink with them rather than downing it in the 5minutes between finally reaching the bar and having to go back to their seat at the end of half time.
Leaving the bars open throughout is a separate issue and would be a terrible...