Samy Bouzaglo brandishes a knife at drunk patron

They're back! Shocking video shows infamous Kitchen Nightmares restaurateur brandishing a 'KNIFE' at drunk patron.
A restaurateur couple made infamous by an episode of Gordon Ramsay's Kitchen Nightmares have been caught on camera in a furious row with an irate and 'drunken' customer.
Video from TMZ shows furious Samy Bouzaglo, Amy's Baking Company in Scottsdale, Phoenix, as he appears to chase down a customer with what has been claimed to be a knife, but which Samy now insists is a pen.
Holding him back is similarly hot-headed wife Amy Bouzaglo, who a witness said had just kicked out the patron her husband was trying to chase down.
And today, Amy told MailOnline the incident kicked off after a drunken customer came in and was abusive to her and husband Samy, saying: 'The guy told us 'You're a f***ing piece of s**t.'