Police in Japan have charged a man with allegedly putting acid in a female co-worker's shoes.
Tatsujiro Fukasawa, 40, was held on attempted murder after he tried to get revenge on the woman for rejecting his advances.
The woman stepped into her shoe and lost all five of her toes after developing gangrene.
She remains in hospital recovering from her injuries.
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Hydrofluoric acid is used to make semiconductors as well as glass - as well as chemical weapons.
The accused denies the allegations against him.