"Ninja's don't wait till you're ready..."

Today at swim, I was sitting on the couch in the lobby because C wanted to wait and "rest" a bit while S swam. Next thing I knew, he was flying through the air and on top of me--knee in the stomach, elbow in the nose. After a gasp and a laugh and an effort to explain that next time I'd appreciate a warning, he said,"Ninja's don't wait till you're ready!"

Touche.