Sound effects for punches landing were made by squashing melons and tomatoes. Sound effects for camera flashes going off were sounds of gunshots. The original tapes were deliberately destroyed by the sound technicians, to prevent then being used again.
That’s it, you’re a Scorpion.
Iris to Travis Bickle in Taxi Driver.
Robert De Niro in Martin Scorsese’s Taxi Driver & Ryan Gosling in Nicolas Winding Refn’s Drive.