Imagine you'd gone to the effort of busking in a public place, only to have a random person tell you you're not very good - but in a much harsher way.
That happened to teen busker Mia Kirkland, who was busking in York city centre - she said the first few hours of her set went well, with some passers-by even giving her flowers as a token of their appreciation.
However, two hours into her performance in St Helen's Square, a white-haired man clutching a jigsaw puzzle approached her and proceeded to give unsolicited advice about her performance.
