"You'll do just fine"

When I was a kid, I used to go camping with my Grandparents every summer. Our favourite place to go had a pool, and one trip Grams bought us water balls to throw around. Well one time we were up at the pool playing with them, some punk kid decided he was going to steal our water balls. I think I saw him take them, and yelled after him, but he got away on his bike. I ran after him, and saw him escape into the men's bathroom. He waited in there until he thought I was gone, and when he came out I gave him a piece of my ten year old mind. When I got back to the trailer with the water balls and told Grams the story, she just looked at me and said "I don't have to worry about you, do I?"