...your three-year-old comes in from outside and says, "Worms in my hood."
You walk over, briefly peruse said hood and reassure him: "Honey, there's no worms in your hood."
But having been a Mom of boys for many years, a niggling feeling causes you to look again.
Still, no worms.
A glance, though, at your six-year-old, who was also outside, convinces you to dig more deeply. And sure enough: there, in the crease of the hood, are three, live, wriggly worms.