Grandparents make excellent free babysitters, but for this 28-year-old, who thought she could always count on Mom and Dad for some much-needed childcare, a bridge was burned. Parents, as expected, are naturally protective of their kids, but you’d think that ever-present grandparent figures would cherish their 8-year-old granddaughter with equal fervor. But this family dynamic went completely sideways after a weekend at grandma’s, turning a steadfast babysitting setup into a nightmare.