Pulk/Pull Revolving Doors

There are barn doors And there are revolving doors Doors on the rudders of big ships We are revolving doors There are doors that open by themselves There are sliding doors And there are secret doors There are doors that lock And doors that don't There are doors that let you in And out But never open But there are trapdoors That you can't come back from --- Pulk/Pull Revolving Doors - Radiohead