The bodyguard, who worked for Lohan for three years, says that she once drove while drunk after having an argument with her then boyfriend Wilmer Valderrama and lost control over her car.
"Lindsay called me from the top of Mulholland Drive in the middle of the night," Contactmusic quoted him as telling America's In Touch magazine.
"She told me that she had a fight with Wilmer and had gotten in the car to chase after him. She'd run off the road and smashed against the curb. She was clearly drunk," he added.
The bodyguard then drove the actress, who was charged with her second DUI of the year in Santa Monica, California last month (Jul07), back home.
"I drove her back home before the police arrived and her wrecked car was towed away," he said.