Sunday Dinner

Little Johnny and his family were having Sunday dinner at his Grandmother's house.
Everyone was seated around the table as the food was being served.
When little Johnny received his plate, he started eating right away.
- Johnny wait until we say our prayer. his mother reminded him.
- I don't have to. The boy replied.
- Of course, you do, his mother insisted. We say a prayer before eating at our house.
- That's at our house, Little Johnny explained, But this is Grandma's house, and she knows how to cook !