There are questions that can be asked if you suspect that someone is abusing the system. THey'll only work if the person is unprepared, though: https://news.y

There are questions that can be asked if you suspect that someone is abusing the system. THey'll only work if the person is unprepared, though: https://news.ycombinator.com/item?id=22124349 https://news.ycombinator.com/item?id=22124349