"The playwright Alan Bisset, whose politics are of the left and he’s in favour of independence, is also big Rangers fan.
This is what he said a few years ago when discussing Rangers from a cultural perspective.
“Scotland has changed, Scottish nationalism is in the ascendancy and if you are a Unionist diehard you will feel under siege. There is that terror of no longer being relevant, of losing control."
How does Cameron define the term 'big Rangers fan'? Does Bisset attend every match? Is he a regular at Ibrox? Or is he a 'big fan' who sometimes watches Rangers on TV and likes to pontificate to tabloid journalists about the make-up of our support?