People that order drinks and then stand around at a busy Bar drinking them.
It must be so inconvenient for you when someone tries to run a pub around your conversation that is seemingly so engrossing that you haven't noticed the crowd of people standing behind you in need of a pint. When the Barman has to shout over your heads to take other people's orders then perhaps that would be a good time to get out of the way? Or, as is usually the case you don't take that as a hint and looked miffed that people are trying to work round you. People even have to pass money over your shoulders/heads etc to pay for their drinks and then bustle between you all to collect their round a pint at a time. Find a table. If you need a leaning post you bloody morons use the wall rather than the Bar. You inconsiderate twats.
