Max Verstappen was fed up on Friday after WADA officials woke him up early to make him do a doping test.
De Telegraaf say the Red Bull driver had a knock on the door of his motorhome at 7am on Friday before first practice.
Officials from the international doping agency were seeking a urine sample from the Dutchman.
Max was a bit grumpy,” Helmut Marko explained.
“It is only a Friday, we should not make it bigger than it is. People from such an agency often come early, because then it is easy to deliver a first pee…”