"First and foremost, I would look deeply into the physical and behavioral clues of my colleague to validate my suspicions. If I was confident that abuse was happening, I would be respectful of my colleague, let them know that I was concerned for their well-being, and ask if they wanted to talk. That conversation could go one of two ways. If they were compliant, I would ask that they talk about their issue with a leader and look into getting the help they needed. If they denied my suspicions and remained withdrawn, I would do my best to document what I noticed and talk to a leader about the issue."