You're reading: Cosmopolitan: Why people really cancel plans

 Someone once told me that the definition of insanity is doing the same thing over and over again and expecting different results. (A quick Google search tells me that person was Albert Einstein, but I don't think so. I don't know that guy.) If that is the diagnosis, then when it comes to calendaring, I'm officially a mental person. I am forever and always committing to plans that I know I won't keep.

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