I'm going to refuse to share my fried chicken with my sister.
Why don't you want to share with your sister?
She is always freeloading. She can get her own food.
You may feel as though your sister asks alot from you, but not sharing your food with her is not correct. Let her have some of your chicken and enjoy your meal together.
She doesn't need to eat. I pay for 75% of the food we get anyways.
Without having to measure what she pays for, you should still help others out. One day you might be in her shoes weather it be intentional or not. Share whatever you can.