How do you catch a cheater?
We asked our followers on Twitter and Facebook to tell us how they caught their exes straying. For some, it was as simple as walking in on the misbehaving spouse mid-act. For another, a stranger's speedo served as obvious evidence that his spouse had been stepping out.
Click through the slideshow below for more cheating stories, then tell us: How did you find out your ex was unfaithful?