Just because she starts to throw a strop. Losing first round is ok, second round no smiles and third round she will either starts to cry or walk away. At first it was amusing that she didn't want to lose. Now it ruins the game. My opinion is we can't let her win all the time and nor can she expect other people to lose. The fun for her is other people losing the game. The more she wins the happier she is and the more games she wants to play.