A few years ago there was a hobbyist I used to chat with somewhat regularly who suddenly disappeared from the boards/chat rooms. About 2 months after the disappearance he sent me an email, telling me that his wife had gotten on to his computer and somehow got into his hobbyist email account and read some of his emails booking ladies. He had been using an HDH agency at the time which did advance bookings by email. Anyway he told me he was going to have to lay low "for about a year" in order to try and save his marriage, a la Tiger Woods. I have not heard from him since, and I don't think anyone else has either. He used to post on MERB many years ago, but only very occasionally.
More recently, an exclusive New York City HDH massage parlor with extras, of which I am a semi-regular client and also a member of their passworded private website, had a problem when the wife of one of the other members discovered his extramarital activities at said massage parlor. The wife, with vengeance in her heart (hell hath no fury like a woman scorned) somehow managed to hack into the passworded private website, and started posting there basically accusing the MP of being homewreckers. From what the operator told me, she also began calling the massage parlor 24/7, and was constantly harassing the phone girls, telling them they were homewreckers, sluts and bitches, yadayadyada. Finally the operator did the smart thing which was to put up a post which basically said, "hey sugar, he has been cheating on you with us for a long time and chances are he is seeing other ladies at other establishments so it is totally illogical for you to single out our business for harassment. The problem is not with us, the problem is with your marriage. That is something you need to work out with him, or not. Leave us out of it." I believe that the client eventually lost his privileges though, due to the fact that they did not want to deal with all the fucking bullshit and the hassle from the jilted wife. The way this place works you need to give them a password when you call (your name and a code) and that gets you into the secure building where they operate.
I personally believe that a lot of married guys who hobby enjoy the thrill and danger of doing something secret behind the wife's back. They are obviously not getting the satisfaction they need from the wife, and I think getting the satisfaction elsewhere, and secretly doing so without the wife's knowledge, presents a challenge and a thrill, perhaps as much of a thrill as the actual act itself.