Erik ten Hag is striving to bring back the glory days of Sir Alex Ferguson to Manchester United.
Rather like Fergie, the Dutch coach also often chews gum during games and it can be a pretty effective prop for expressing frustration.
It was spotted that Ten Hag was so annoyed by something Fred did during Wednesday night's draw with Leeds United, he took the gum out of his mouth and hurled it to the floor.
There was also a mad minute at Old Trafford when the Brazilian midfielder conceded a free-kick, misplaced a pass and lost possession in a duel, raising his manager's stress levels still further.