A Texas father is auctioning off the video game systems he had bought his sons for Christmas, saying they do not deserve the expensive presents.
Nintendo DS game systems are hot-selling items
The 41-year-old man from Pasadena said he had bought three Nintendo DS systems - one for each son.
But fed up with their misbehaviour, he has posted the items on the eBay auction website.
"No kidding," the eBay posting says. "Three undeserving boys have crossed the line."
The man told the Houston Chronicle newspaper that he and his wife were at their wits' end.
The boys - aged nine, 11, and 15 - would not stop fighting, swearing and making obscene gestures, he said.
He defended the decision to auction off the three systems, together with three games, by saying: "Teaching accountability is NEVER EVER EVER wrong."
By late morning on Christmas day the bid for the items had reached $740, and the reserve price had been met.
A new Nintendo DS system on its own retails for about $150 in the US.
The sale ends on Monday.