Felipe Massa has branded Formula 1 rival Sergio Perez "dangerous" after the crash that took them both out on the final lap of the Canadian Grand Prix.
Massa was trying to pass Perez for fourth heading into Turn 1 when the two cars collided and speared into the barriers.
Both drivers walked away from the crash, but the impacts registered a high enough g-force to require each of them to receive precautionary check-ups in hospital.
The stewards slapped Perez with a five-place grid penalty for the next race for causing the collision, and Massa said he hoped the Mexican would learn from the incident.
"I talked to him at the medical centre. I was so disappointed with him," Massa said.
"I said that he needs to learn. I wanted him to put himself in my place, because I had a huge crash and honestly I thought it was going to hurt.
"It's not the first time that he turned into somebody under braking. He did this many times. He didn't say anything, he just turned and left. I hope he learns.
"We are doing around 300km/h there. With another car in front it could have been a very serious accident.
"We've had the rules for a few years that when one car is up the side the other cannot move anymore. He just move and we touched.
"It's dangerous. For me five places is not enough. He was dangerous. We could have crashed into [Sebastian] Vettel."
Perez said he was suffering an electrical problem with his car in the closing stages, and also complained of rear brake issues when the accident happened.
"On the final lap I was defending my position going into Turn 1 when I suddenly got hit from behind," he said.
"It was not easy in the final laps and I was pushing hard to try and get ahead of Nico [Rosberg] for the lead.
"Daniel [Ricciardo] managed to get ahead of me when I had an electrical issue with my car, but I managed to reset the system for the final couple of laps.
"The podium was possible today and I'm just very disappointed for the points we have lost."