The Death Drive
Never mention the "D" word.
It is traditional and socially correct only to mention half of one's life in polite company. You can freely talk about things that express positive, life-affirming things but never go anywhere near the dark and negative aspects of life, or you will never be invited to a cocktail party again, which might be a relief for some people. This mirrors very nicely our embrace of life and rejection of death. We love Eros, the driver of our pleasure-seeking, sexual desires and efforts to make sure we persist in our existence. The death drive, however, is characterized by Thanatos, a largely subconscious and structural part of the body (we all die).