Room 101 anybody

You know when you go to the petrol station to fill up and queue up behind someone who's already gone to pay for their fuel - cos in your mind you think they'll be out in a mo. Well think again people - particularly if the payment kiosk is part of a mini mart. Ten minutes I waited only to find this dude had also done his weekly shopping at the same time as paying for his fuel. Is it me or is that selfish I can't quite decide?