Attempt it at home. Ftfy.
EDIT: If an existing relationship isn't enough to "deter" cheating, nothing is. You might as well find a divorce attorney than put up cameras.
A friend, that never would have dreamt about using cameras like this, only found out his wife was cheating when she had a major car crash at 3am returning from her affair partners house. He was at a national lab where he works the night shift.
And since I'm in sales overall I have a lot of friends and I talk a lot. And I like to drink, and guys with relationship troubles are driven to drink and gravitate to me during that stage of their life.
And I'm single at 40, so I hear about a lot of relationship trouble because I'm easier to talk to than a married guy which doesn't exactly want to hear about cheating and failed relationships.