its not bad blood when it comes to the football mate, it's just that 5under1and fans have what's called "small club syndrome", a bit like little man syndrome.
the fans know that the club is smaller / inferior to nufc in each and every way, but still they insist what a great club they are (did you know they even won the FA cup in 1973, (current FA cup holders Wigan, another massive club)
they bang on about what great fans they have, but they have topped the league again for the amount of empty seats in 2012-2013. They cant even fill their stadium, rows and rows of empty seats.
It must be hard for them, knowing the club they support is pretty much irrelevant in modern day football, that they will forever stand in the shadow of NUFC , high sixing each other over a 1973 fa cup result, munching their cheesy chips and swigging there panda cola.
To be fair, I feel a bit sorry for them, they're understandably bitter about being NUFCs poor relatives, even when there on holiday, nobody knows where sunderland is , "next to newcastle" is the answer, the poor lot haven't even got an airport....