Mark Webber felt that the distraction of having to drive around Kimi Raikkonen's cruising Ferrari cost him crucial time on his final qualfying run at Silverstone.
The Red Bull driver fell from provisional pole to third on the grid when he failed to sufficiently improve on his last flying lap, having had to go off line to pass Raikkonen into Stowe.
"I would have liked a slightly cleaner run on my last Q3 lap," said Webber.
"Kimi was, I don't know, drinking some vodka or dreaming or something -- I don't know what hell he was doing but he should have been on the right and he was on the racing line, dreaming. That wrecked my rhythm really into Stowe, I was very tight into there.
"Kimi couldn't have done a better job of distracting me. He was right on the racing line, on the most important lap of qualifying and it ruined my rhythm."
But Webber admitted that the situation could have been much worse and said he was still pleased with Red Bull's performance, having seen his team-mate Sebastian Vettel secure pole.
"No one is here to listen to a shopping list of excuses," said the Australian. "I would have liked to have got more out of the car on the last lap, that wasn't the case, we're still third. Congratulations to Seb, he did a good job.
"A lot of frustration, but hey I'm not 10nth on the grid."
Red Bull dominated Friday practice and has been the team to beat all weekend -- an achievement Webber put down to the squad's latest upgrade package.
"We've made some changes this weekend and they have worked," he said. "This is the fastest the car has ever been. All the hard work is now being realized. We're definitely in for a good result tomorrow if we can have a clean race."Related story:Raikkonen denies distracting Webber