Bruce Willis threw water over a photographer's car after the snapper tried to take his picture as he left a medical building in Beverly Hills, Los Angeles.
The Die Hard actor reportedly became irritated at how close the photographers were getting to him, he retaliated by throwing a bottle of water over one of their cars.
However, many of the photographers were pleased with his antics as they photographed him hurling the liquid.
Bruce is not the first celebrity to lash out at the paparazzi.
Last year, Britney Spears famously beat a photographer's car with an umbrella when she deemed he was being too intrusive.
She later wrote to the photographer's agency to apologise for the incident.
She said: "I want to apologise for the past incident with the umbrella. I was preparing a character for a possible movie role where the husband doesn't play his part so they swap places.
"Unfortunately, I didn't get the part. I'm sorry I got all carried away with my part."
In January, Coldplay frontman Chris Martin tackled a photographer to the floor outside New York's Mount Sinai Medical Centre.
The singer was with his wife Gwyneth Paltrow - who was rumoured to be pregnant at the time - and became enraged when the photographer shouted "congratulations Chris!"
Chris screamed: "Have some f***ing respect!" He then pushed the paparazzo to the ground and wrestled his camera from him.
