The problem with Sunderland fans (or Newcastle or Liverpool, delete as appropriate) is that they misguidedly think they're the most respected, admired, loyal, hardcore fans in the world.
As a consequence when you get a scenario like the whole delayed kick off Jimmy Hill thing from 40 years ago it gives them a vehicle to broadcast their tedious self-indulgent beliefs and demonstrate to any poor bastard close enough to hear them just what a true, dyed-in-the-wool super-fan legend they are.
It's a bit sad particularly as half of the knob heads weren't even born then, but that's the human race for you, never fails to disappoint.