To my friend Susan, the dirty coffee mug symbolized everything that was wrong with her marriage.
"He'll just leave it on the counter, ABOVE the dishwasher."
Every morning she'd see that coffee mug. And every morning the resentment would grow.
Five years into their marriage, Susan blew up. "I am not your maid! Why can't you just put your coffee mug in the dishwasher like everyone else does?"
