It was when the grandson of the man in question went home to Japan to see the altar set up in his grandmother's memory. A traditional practice in Japan, it generally involves a display of photographs, flowers, the ashes of the deceased and offerings such as cakes.
His grandfather had placed a bouquet of flowers on the table inside what turned out to be the young man's 'Tenga' brand masturbation aid - alongside his late wife's photo.
The grandson who goes by the online name of 'Koniy805' shared the story online to get a few laughs.
Koniy0805 said: "My grandmother passed away a year ago, so I wanted to say a prayer for her, and I saw that the Tenga I received as a going-away present when I quit my old job is being used in the worst way anyone has ever used it."