DRINK LESS

A guy walks into a bar and approaches the barman, 

'Can I have a pint of Less, please?' 

I'm sorry sir, 'the barman replies, looking slightly puzzled, 

'I've not come across that one before. Is it a spirit?'

'I've no idea, 'replies the guy, 

'The thing is, I went to see my doctor last week and he told me that I should drink less.'