I remember that Grimsby game. We caught a ridiculously early train from Manchester, direct to Cleethorpes (no idea if that is still possible). There were about 150 blues on board, most of whom ended up in the same pub. Not long after we arrived, a seriously huge mob of Grimsby turned up outside the pub, fortunately for us with a very large police presence in tow, which meant that despite a lot of noise and posturing it didn’t go off. Unusually in those days, given the numbers involved, City meekly accepted the subsequent police escort up to the ground.