For an accurate summary...... from 2015 on here.
A notorious incident that went roughly as:
In the mid-80s they'd been playing a night match at Barnsley i think... a group of them came into Sheffield for a gargle after that game, and got into a series of scraps with locals. One of their lads (apparently) attempting to drop-kick someone fell backwards onto a kerb, smacked his head and later died.
The following year the same group hired a van, went to their West Brom away game, and drove up to Sheffield afterwards - allegedly with a deliberate mission to even the score. They called in early bar on the edge of Sheffield for a sherbert or two and to wind themselves up and "practise" their tactics for the trip into town.
Unfortunately their local knowledge was lacking, and the place they chose on the edge of Sheffield was "the George" in Woodhouse.
Now, Woodhouse - especially at that time - while not presenting a rough-arsed face to the world, was a very close knit community with a lot of seriously handy individuals that were very tight.
Big mistake. They mugged someone in the toilets, dropped my mates brother in the bar but then had to endure a bit of a kicking (and "Pool-balling") in the pub, during which word got round the rest of the pubs in Woodhouse. By the time the police arrived to haul what was left of them off for their own safety, I think they'd vowed to read up on safety helmets and defunct northern pit village culture.