Brazilian man Enrique dos Santos,35, a swimming pool attendant, was trying to look like superhero The Hulk but used a paint reserved for ballistic missiles and nuclear submarines.
The comic book fan tried to scrub off the glossy green in the shower, but the substance stained his skin.
And more embarrassment was heaped on him when local papers in Brazil said the woman trying to help him was his girlfriend - when in fact it was his mother.
He has been mobbed by children in his native country, who Marvel at his likeness to Bruce Banner's alter-ego.
But after being scrubbed for 24 hours by as many friends and neighbours as he could get hold of, the paint eventually came off.