Electric toothbrush app data exposed a UK husband’s affair by logging brushing activity at 10:48 am on Fridays—times he claimed to be at work. The digital sleuthing began when his wife, monitoring their 2 kids’ dental habits, spotted the odd schedule. Private investigator Paul Jones called the device’s evidence “timestamped, often location-based, and emotionless.”

Brushing history turned detective: the app showed Friday morning use, even though the husband insisted he was at work. The wife confirmed her kids were at school, ruling them out. The so-called “innocent data” tracked his secret liaisons, with Jones noting, “When a device says someone brushed at 10:48 am, that’s hard to explain away.” A smart toothbrush outed the affair—oral hygiene turned high-tech informant.

Private investigator Paul Jones warns: smart toothbrushes can log affair timestamps, leaving “emotionless” digital evidence behind.