What is it with us humans that when the person we love is cheating on us all we want to do is beat the crap out of the person he/she is cheating with. Would he not be the more sensible target? But then, there is that little thing called jail.
A friend of mine had a genius response to her cheating spouse. She neatly packed all his stuff and personally delivered it to the porch of the other woman. She then changed the locks, and did not take his calls. I think he was more shocked with the calmness of her demeanor than the unloading of his stuff on that porch.
He is still scratching his head.