When I was a manager, my wife used to watch us all on the touchline and say we were like little boys, shouting and waving our arms around. She thought it was a bit pathetic but also knew there was no point banging on about it. I was not going to change.
The emotion and stress of managing makes you behave like that. Jurgen Klopp and Pep Guardiola like to come across as cool customers but deep down they are just like the rest of us.
They are under immense pressure and when they need a release it tends to be the referee or fourth official who gets it.