Think he is stepping out?  If you don’t mind kind of being a nut, and digging through his dirty drawers, this lab can help!

You basically steal a pair of his dirty under-roos and send them in.  They swab them and then do lab tests to see if there is any sign of DNA (aka his secretary)

Keep in mind, if it has gotten to this point, you would be better off leaving him anyway and spending the money in Fiji.

Grab the link and story here