A customer who tried to set fire to a petrol-soaked bank branch has been jailed for three-and-a-half years, police said.
Jason Duncan-King grew angry with staff at the Metro Bank on the High Street in Bromley, south London, in a row over a blocked payment from his account last October.
The 51-year-old threatened workers before returning an hour later with a petrol can and matches, dousing himself, the counter, a staff member and the store in the highly flammable liquid, according to the Metropolitan Police.
Officers showed "extreme bravery" in swiftly arresting Duncan-King after arriving to find him holding matches.
Jason Duncan-King, 51, from Sevenoaks was found guilty of attempted arson and being reckless as to whether life would be endangered. Image: Metropolitan Police/PA.
Duncan-King, of Sevenoaks, Kent, pleaded guilty to attempted arson and being reckless as to whether life would be endangered last month and was sentenced on Thursday at Croydon Crown Court, Scotland Yard said.
Some staff slipped on the petrol and suffered minor injuries during the incident, which caused more than £11,000 of damage.
Police said some workers have suffered a "big impact" on their lives despite not being seriously injured physically.
Detective Constable Jamie Kirby said: "The officers who first attended the scene showed extreme bravery and put the safety of staff and customers before themselves.
"This incident could have been significantly worse if not for the swift and selfless intervention of these officers, actions which may well have saved the life of Duncan-King and others."