Ferrari driver Michael Schumacher told BAR driver Takuma Sato he needed "therapy" after the pair clashed at the Belgian Grand Prix.
Sato, who was demoted 10 places on the grid for the Brazil Grand Prix after a post-race investigation, clipped the German's car, forcing both off track.
"I don't know what sort of therapy might help him," said Schumacher.
"I'm not very happy. It's not the first time he's been involved in an incident like this, so it's not good."
Sato said Schumacher's early use of the brakes approaching a corner was at least partly to blame.
"It was very fast into turn one. Michael and I were overtaking a Jordan on the right and because of that we were very close to the pit wall and I was getting boxed in," he said.
"Into turn one Michael braked very early. Unfortunately I locked up the brakes and hit him."
BAR chief Nick Fry was also quick to jump to the defence of the Japanese driver, who was dressed down by Schumacher after the incident.
"Clearly Takuma made a mistake but these things do happen, you saw today many of the top drivers making mistakes and Michael has made his fair share so I don't think it's very fair to say that kind of thing about Taku," he said.
"Taku couldn't hear what Michael was shouting at him which is probably a good thing."