What was Jada Pinkett Smith’s state of mind, when her husband mounted the Oscars stage and slapped Chris Rock in March 2022? We wade through 95 per cent of her memoir, Worthy, to get to that moment, and it isn’t really worth the wait. Not when she starts calling it “the Holy Slap” – a springboard to personal growth. At first, like many viewers, she assumed it was a skit; then she realised it wasn’t, but didn’t understand. Only when she heard the word “wife” yelled by Will did something click. “This is when sixteen-year-old Jada appeared,” she writes. “I’m back in a club back in Baltimore, a fight has broken out, and s--- could start popp’n.” Smith, as she recounts, grew up closely acquainted with violence and rage. Soon after she was born, “an argument got out of hand”, and her father, Robsol, punched her mother, Adrienne, in the stomach, an assault that swiftly led to them divorcing.…