Now that's an expensive joke.

J.R Smith of the New York Knicks likes to have some fun when he's on the court. But his last few incidents of horsing around got him in trouble; about $50,000 worth. He got fined for unsportsmanlike conduct for untying the shoes of a few players. Shawn Marion of the Dallas Mavs fell victim to J.R Smith's shoelace joke.

So when it happened again for the second time, the NBA was definitely not laughing. According to Marc Spears, J.R was fined $50,000 for this shoelace incident. Check out the videos of J.R Smith getting Dwight Howard and Shawn Marion below.

Video: cjzero/KD