Taking care of her brother Raymond changes Squeaky because she doesn't want anyone to hurt his feelings. Squeaky likes to be a winner and who can blame her. She wants to beat everyone in the big race because she works hard to be the most fastest runner around.
Explanation:
It's a bit funny, but Squeaky stays focused on her run. Then Squeaky looks the other direction and sees Raymond. When she sees him, Squeaky is shocked by what she sees.
