Obviously, he never met my wife. She can't browse facebook without asking me for support, but when she's searching for something i did wrong, she's suddenly a forensic computer expert with 16 years experience in hunting down the smallest trace...
I think most wives find out everything their husbands get up to. Using Bitcoin won't stop them discovering if you use porn and when they discover it they will probably confiscate all your Bitcoins as a punishment. Most wives have kids, and kids often know more about computers than professional programmers. They will get their kids to do their dirty work for them.