An Irishman walks into a pub and orders three pints of Guinness, taking a sip out of each pint in turn. The Barman says to him, 'A pint goes flat after I pull it, You'd be better getting one at a time'.
The bloke replies, 'Well, I have two brothers, one in America and one in Australia. We agreed we'd all drink this way to remember the times when we all drank together in our old local boozer.'
The Barman understands and nods, and gets back to cleaning glasses.
Over time the Irishman becomes a regular and always orders his drinks 3 at a time, until one day, when he buys only two pints. The other drinkers fall silent.
' I don't want to intrude on your grief,' says the barman when the Irishman finishes his drinks,' but I want to say I'm sorry about your loss.'
'Oh no,' says the Irishman, my brothers are fit and well. it's just that I've given up drinking.'