Like said earlier we don't want them to have additional power over us. If someone close discover some of your shady undertakings or habits by one's own admission or by their own device stepping over the line due to suspicions (doesn't make any difference really), you sure as hell is never going to hear the end of it. I know this by experience, shit from 10 years ago can and will resurface if they feel a certain way about something, or they want to influence you somehow or make you feel a certain way lol. Luckily I'm fully aware that no matter what bringing up my eccentricities and former eccentricities make them hell of a lot more uncomfortable than me, I have more expererience with these things in this regard, first hand experience one could say even, so it's kind of hard to gain any leverage on me by doing this.