Dragging her friend by the hair down a flight of stairs cost Jayne Stockman a £165 fine.
Forty-year-old Stockman, of Woodstock Avenue, Galashiels admitted assaulting a woman at a house at Langlee Road, Galashiels, on December 17.
Depute procurator fiscal Tessa Bradley said both women had been drinking and began arguing about money and a mobile phone.
As the argument became more heated, Stockman grabbed her friend by the hair and pulled her along a corridor onto the common stair landing before dragging her down some 12 steps.
The woman sustained minor head injuries.
When police spoke to Stockman the next day, she told officers: “I done it.”
Defending, Iain Burke said the two women remained good friends, with the victim accompanying her to court.
He added: “Drink was a significant factor here. She is back on her medication now, which she had stopped taking at the time, as she wanted to drink.”