L aura Daly was six the first time she suspected something was wrong with her mum, Wendy. Furious at locking herself out of the house, Wendy reversed and rammed the car into their garage door once, twice, then three times, as Laura cowered silently in the back, her head flopping forwards with each smash. On the seventh smash, the garage door contorted just enough for Laura to squeeze under, get into the house and fetch the keys. “It was like I was watching myself,” Wendy Barker, 56, says of this moment now. “Nothing would’ve stopped me.” Inside the Hampshire home, the rage subsided and Barker wept. Until that moment she had generally hidden the worst of this kind of thing from her two children. “The symptoms slipped out this time,” she says. “I’d usually hold them in till the kids were in bed. If my husband came home slightly late, plates and knives would fly,” she says. “I often say to him now, ‘Why did you stay?’ He always says, ‘Because this wasn’t you. But I knew you were in there.…