I’m also not saying that it happens even remotely on a regular basis, but here is a NY Times article about 2 different sets of parents who took photos of their kid’s doodads solely because of genuine medical concerns (all documented by their pediatricians) and once Google’s servers detected the photos, not only did the company disable their respective accounts, but it also contacted the local authorities. The cases were both closed because the local police departments understood what had happened, but they were still officially investigated and who knows where it could have lead. At least one of the parents had his search history, location history, messages and all other photos, videos and documents he stored with Google sent to the police.