A UK woman suspected her husband of cheating after noticing odd brushing times on her electric toothbrush app. Private investigator Paul Jones shared a case where a woman caught her husband cheating by monitoring the toothbrush usage of her kids. The woman discovered that her husband was using the toothbrush at times when he was supposed to be at work. The data from smart devices like toothbrushes can reveal incriminating information about cheating partners, as seen in this case. Jones warned that even seemingly innocent data from smart devices can expose infidelity.