DON'T PLAY THIS MOVES (loose a chess-piece)

Helo everybody! I tell you about this bad moves. If you play this moves you loose your chess pieces. But, when your opponent play this moves you win a game! Let's see this position. 

That is not good! You lose your Rook and when you don't defend your knight you loose the game! Let's see next position. 

This is REALY not good! You loose your queen on the opening! But, your opponent can loose her too!