Christine De Ville from Swansea said she felt "outraged" after hearing of the unmade bed on show by artist Tracey Emin which is shortlisted for the Turner Prize.

Secuity guards moved quickly to prevent the mother of three from damaging the work.

Mrs De Ville, who drove 200 miles to London to make her statement, said she was used to tackling the bedrooms of her children.

The exhibit, My Bed, features an unmade bed with grubby sheets, surrounded by condoms, soiled knickers and bottles of vodka.

Christine De Ville: "I suppose I might be a conceptual artist myself"

"I thought I would clean up this woman's life a bit," she said.

"After I heard about it, I drove straight to London with a 500ml bottle of Vanish.

"I had a go, but unfortunately I could not get to wash the sheets, just a pre-wash."

Mrs De Ville said she may have done the artist a favour.

"In her video, she was bleating on about a lack of a love life."

"She will never get a boyfriend unless she tidies herself up," claimed Mrs De Ville.

Ms Emin's exhibit was also disturbed by two art students, who staged a pillow fight on the bed, four days after the exhibition opened.

Jian Jun Xi, 37, and Yuan Cai, 43, said they were "visual artists" attempting to make Tracey Emin's work more interesting.

It is one of five works of art shortlisted for the £20,000 prize - and which art lovers have been flocking to see at the Tate.