Newcastle boss Eddie Howe says his confrontation with a Leeds fan in the 2-2 draw at Elland Road should act as a wake-up call for those responsible for the safety of players and staff.An angry home supporter – who Leeds later said had been arrested and banned for life by the club – climbed out of the stands and entered the technical area to confront Howe before being quickly whisked away."It was just such a strange thing because you're concentrating on the game, it's not something you expect to happen. He said confronted me, said something I can't repeat and then he's led away," Howe said.