Your criteria is to have an objective record of the facts (of STD status).
If you wanted to get married, you would want to know your future partner's credit situation. You wouldn't marry them and put their name on your deed before you knew - objectively. With documents - what the facts are.
So for instance you wanted to know exactly what he was doing at the club. You could get one of his boys to record him on Google Glass all night. If he was acually turning women down who wanted to dance and just rhyming in a Cypher in the bathroom all night he would laugh when he found out he was being taped.
The only time we need privacy is when we are doing something we don't want seen. You wouldn't mind living in a glass house.. until it was time to fukc or take a sh;t. You could watch TV and eat food in front of strangers.. we in fact pay extra to do things we can do at home in public (listen to music, watch movies, eat food, work out, dance). Privacy is simply freedom to sh;t, fukc, do drugs, yell at your kids, creep, and all the impoliteness.
Feels like the desire to "say so" is most important. The authority to have one's word be law. And it doesn't go both ways. He gets his temp checked at every step.