A disabled man suffered a brutal attack in which an aerosol and lighter were used as a blowtorch.
The 54-year-old victim, who is partially blind, was at home having a drink with the assailant, Leon Short, who suddenly set upon him for no apparent reason.
Short smashed a glass and cut the man's cheek with a piece of broken glass before stubbing out a cigarette on his bare stomach.
Jailing Short for two years, Judge Simon Hammond said: "It was gratuitous, drunken violence on a disabled man in his home. Using an aerosol as a blowtorch is about as bad as it gets."
He compared the act of cutting the victim's face with glass to the actions of "gangsters in the 1950s with cutthroat razors".
Short (43), formerly of Hand Avenue, Braunstone, Leicester, admitted causing actual bodily harm on August 15.
Neil Bannister, prosecuting, told Leicester Crown Court the victim was blind in one eye, with 80 per cent vision in the other.
A car crash left him with 32 pins in one leg and he needed a walking stick.
The victim lived in Chaucer Street, Highfields, with a female companion, who was present during the attack.
Short, who was a passing acquaintance, had called round uninvited asking to use the toilet and stopped for a drink – before turning nasty.
Mr Bannister said it was a sustained assault, starting with Short smashing a glass and cutting the disabled man, before punching him several times.
Mr Bannister said: "He picked up an aerosol can and held a cigarette lighter up and sparked it in front of the complainant's naked chest and head, causing his chest and hair to burn.
"He was terrified.
"The defendant refused to leave and insisted staying all night."
The woman occupant eventually rang 999 the next morning. The victim told the police: "I'm very scared and don't feel safe in my flat any more."
Judge Hammond made a restraining order, banning the defendant from contacting either occupant of the flat and forbidding him from entering Chaucer Street indefinitely.
Richard Holloway, mitigating, said: "This was in the context of the twilight world of heavy drinkers drinking together."
He said Short was a former victim of notorious child abuser Frank Beck while a resident at a children's home, which had led to heroin addiction from a young age.
He gave up drug abuse a year ago, but instead turned to alcohol.
