Throw-ins

I'm surprised i haven't seen anything on this. Perhaps i haven't looked far enough?

Why are the throw-ins so screwed up? I.e. where a player will just throw the ball back past the same touchline he's throwing from, or where he'll just throw it across the touchline for a goal kick when there's no-one remotely near.

I also just had a situation where my guy put the ball out because one of our players had taken a knock. Their player took the throw-in and threw it behind the touchline he was standing on for another throw-in. Then my player took the throw-in and threw it back to them as if they had kicked the ball out. :confused:

Is there a reason why throw-ins are so messed up like this?