Denial

Employed by alcoholics and the British for centuries, denial is a life skill more important than street smarts or keyboarding. Believing that Uncle Bobby never "tucked you in funny" and Dad is still alive, you just haven't heard from him in a couple of years, literally takes away the pain. 

Living in denial is like being the mayor of your own Happyville because lying to yourself works. Though emotional eating is a better coping mechanism for life's trauma and drama, diabetes is a bitch.