Nowadays behaviour. You make a mistake because you didn't fully understand it and did not pay enough attention to it or simply choose to ignore warnings and then come back in and blame somebody else.

Stianb, it sucks your best player has been sold for a bottom price. I would rage over it to if it happened but I would be only blaming myself. Take a breather, learn from it and move on. Man up. You will not make this mistake again. Sorry for your player.