Larry clearly takes no prisoners as the iconic No. 10 cat was filmed scrapping with a fox before chasing the intruder out of Downing Street.
The 15-year-old Chief Mouser stood his ground as the feral visitor got a little too close on Monday.
Long-suffering Larry - trusted companion for Prime Ministers David Cameron, Theresa May, Boris Johnson and Liz Truss - is always on his guard with other animals often on his turf.
He saw off the fox twice his size in a clip captured by Sky News late last night.
Defying his age, the brown and white tabby took it upon himself to rid the road of the creature, showing the unwanted guest who was boss, legging it to safety out of the gates.
Stalking his rival after chasing it into the bushes, he wasn't done there and refused to rest until the coast was clear.
The defeated fox really should have known better.
Larry has form and has already shown he is more than a match for other local cats, having been seen wrestling with Palmerston, his foreign office counterpart, a few years ago.
Freya the cat, who belonged to former Chancellor George Osborne, also had a spat with the PM's feline.
It didn't take long for the cat to take to twitter to clarify what had happened.
Responding to the video, parody account Larry the Cat had a poke at the Tory Government to his 700,000 followers.
Replying, it wrote: "Someone at this address is up to the job."
The account also shared the video of the street victory, cheekily saying 'Fox off'.
Larry was only four years old when he was adopted from Battersea Dogs & Cats Home to begin his new life in politics.
He moved in back in 2011 - making him the longest serving cabinet member.
According to the Downing Street website, “Larry spends his days greeting guests to the house, inspecting security defences and testing antique furniture for napping quality.
“His day-to-day responsibilities also include contemplating a solution to the mouse occupancy of the house.”
