A man is giving a stranger the chance to slap him around the face with a wet fish, to raise money for charity.
The winner must buy the fish
Ben Fillmore, 24, will be ready to take the abuse at Speakers Corner in Hyde Park, central London, on Saturday.
The bizarre opportunity is being auctioned on the website e-bay to raise money for the UK Stroke Association.
The highest bidder has to buy a fish of their choice, which must be fresh, and is only allowed one slap at the specified time and place.
The Stroke Association works to reduce strokes through research and health education and support people and their families affected by the condition.