My old "infidelity mentor" told me his belief was that affairs immediately take off 40 I.Q. points from those in them. I've come to believe it!!!
(I had a simple GPS-enabled prepaid cellphone stashed in the trunk of my wife's car, which I could track via the internet. When I busted them for the second time, causing a bad case of affairus interruptus, I was able to listen later to what the voice-activated recorder had captured from its position Velcro'd underneath her driver's seat.
"HOW IN THE HELL IS HE FINDING US, IS HE FOLLOWING US???" she wailed.
"No," her acne-faced 29 yo boyfriend-who-still-lives-with-his-parents replied, oh-so smartly. "See this little antenna here, on your BMW?"
"Yeah?" my wife could be heard saying.
"Well, he's able to track you with that, thru the BMW Assist service. That's gotta be it," ol' Pimple said.
"Yeah," she replied. "I'm sure that's it."
It took me all of sixty seconds on the BMW website to learn that they will ONLY provide location information to a third party if the car is reported stolen, and the owner provides a criminal Case Number, and thru the ENTIRE thing -- busted multiple times -- they never even bothered to do a simple search of the car! )