[Jurassic Referee]

Originally Posted by Snaqwells

Actually, I was thinking it's a violation based on leaving the throw-in spot.

However, I'm not positive, as the definition of throw-in spot only specifies width while pointedly stating there is no depth limitation. Since it doesn't say anything about having a boundary equal to the boundary line, I have to say you're right. It's nothing.

Right, there's no depth limitation either way.