Manchester United manager Louis van Gaal says he has learned to control himself on the touchline, but that he used to be like new Liverpool manager Jurgen Klopp.
Klopp has become something of a cult figure in the Premier League for his animated antics in the dugout, but as Man United prepare to face Liverpool, Van Gaal insists that officials are not bothered by anything the managers do.
"When I was younger I was like Klopp." he said. "Now at 64 I can control my passion more. I don't think the referees in England are influenced by what the manager or the fans do. Every manager has his own identity, his own personality and also his own philosophy.
"When I started my career I did that [Klopp-like actions] also. But I don't think you can influence from the touchline."
Van Gaal did remember a time when he was particularly animated when in charge of Dutch club Ajax -- the 1-0 Champions League final win over AC Milan in 1995 where he nearly kicked the fourth official.
"I did a karate kick," he said. "It was the 1995 Champions League final, Ajax against AC Milan, and I did a flying kick. We won 1-0, but we should have had a penalty for a high tackle on [Jari] Litmanen.
"I was angry, so I did a karate kick on the touchline -- about a foot away from the fourth official's face. I wanted to show him what had happened to Litmanen.
"It should have been a penalty, but the referee did not whistle for a penalty. And in that moment, I realised that a manager can never influence the referee by what he does on the touchline.
"I realised that you have to control your passion. I know a lot of fans like the manager to show he is angry and at Newcastle [United] the other night I was angry when Jesse Lingard missed a chance to score [in the 3-3 draw].
"I am a little bit older now. But I still see the referee from 1995. He is a UEFA controller of referees now -- and he reminds me what happened that night."