A customer terrified a shopkeeper when he stripped off his shirt revealing a machete tucked into the waistband of his shorts.
Christopher Holmes, 25, of Winnipeg Place, Bispham, pleaded guilty to possessing a blade in public.
He was sentenced to eight weeks’ imprisonment, suspended for 12 months, and put on 12-months supervision with drink counselling.
He was also ordered to pay £80 victims’ surcharge by Blackpool magistrates.
Presiding magistrate, Cliff Boynton, told Holmes: “The shopkeeper must have been terrified.
“He must have wondered what you were going to do next.”
Pam Smith, prosecuting, said police got a call from Holmes’ mother to say they had had a row at 9.40pm on July 19.
Holmes had left with a machete.
He went into Sam’s convenience store, on Lyddesdale Avenue, and bought some alcohol before taking off his shirt to reveal the machete.
Police then apprehended him nearby.
Steven Duffy, defending, said Holmes had been given the antique knife by a friend.
He had gone to the store, bought some alcohol and asked for it to be double-bagged because he was on a bike.
He took the knife out to put in the bags.
He showed no aggression towards the shopkeeper.