But together, they’ve left Diageo with a short supply of Guinness at a busy time of year. The London-headquartered company will impose a weekly cap on the stout’s supplies, reports suggest ...

If you were asked to conjure an image of a typical Guinness drinker you might picture an elderly flat-cap-wearing gentleman or a rowdy rugby lad. But in an unlikely turn of events, times have changed.

These are all good problems to have independently. But together, they’ve left Diageo with a short supply of Guinness at a busy time of year. The London-headquartered company will impose a weekly cap ...