When Warnock left Blades

[PedalR]

On way to Barnsley the other week I tuned into BBC Radio Eee By Gum for their pre-match build up. When discussing NW's departure from Blades they referred to a souring of relationship following some sort of incident involving abuse to NW and also his family in players' lounge/board room. They didn't go into any detail as they assumed listeners would presumably know the gory details.
Anyone know what actually happened?

[The Godfather]

Following Sheffield United's defeat to Wigan on the final day of the season, Warnock was confronted by the actor, Sean Bean, who is a Blades supporter, in his office. Warnock claims that Bean insulted him in front of his wife and daughter, blaming him for the club's relegation. It's in his autobiography.