Drunk in a pub

Neil was in a pub, extremely drunk. The barman, Simon, noticed this, and when Neil asked for another whisky, the barman politely told him that he was too drunk to be served another drink.
Neil leaves. He walks out of the pub and in again at the side door and asks Simon for a double whisky. A little frustrated, Simon repeats the answer he had said earlier.
Neil, again leaves and enters through a further side door, walks up to the barman and asks for a Scotch. Simon is now quite annoyed and tells Neil he is too drunk and to get a ride home and leave the pub.Once more, Neil leaves. Again he comes in this time through the back door. Neil walks up to the barman and before he can say a word, Simon explodes at him, 'I told you already, you are way too drunk, you cannot have another whisky. Get out of my bar!'
Disgruntled, Neil glares at Simon and asks, 'Man, how many bars do you work at?'