A woman threatened to kill a homeless man who declined her offer of free chips.
Brigette Saunders saw Steven Higgins in a Waitrose shop doorway in Nailsea High Street and offered him chips.
But after he said no she became agitated and he mentioned her to police, Bristol Crown Court heard.
Though she was warned that her gesture was nice but unwanted, she later accused Mr Higgins of being a “police grass” and lunged a blade at him.
She was arrested and assaulted police custody officer Jennifer Eaton.
Saunders, 36, of Clevedon Road in Nailsea, pleaded guilty to threatening behaviour and assault in August last year.
The Recorder of Bristol His Honour Judge Peter Blair QC deferred sentence until September 30, telling Saunders to engage with mental health services.
Julian Howells, prosecuting said Saunders gave Mr Higgins a box of chips, telling him “people like him” shouldn’t be sat where he was.
She later returned with a bottle of vodka and more chips, and when he again said “no thanks” she became agitated and threatened to kill him.
He spoke to police and police spoke to Saunders, the court heard.
Later Saunders was holding a steak knife when she went “nose to nose” with Mr Higgins, saying: “I’m going to kill you, you’re a police grass,” Mr Howells said.
She was seen to lunge at him with the blade some four times but he managed to dodge her.
Police found her with a cut hand and, at Patchway custody suite, she flung out her arm and caught custody officer Jennifer Eaton in her right eye.
Farah Rashid, defending, said her client suffered from mental health and physical difficulties and asked for a deferred sentence.