What does an introvert do when he's left alone? He stays alone.
Alone in the Kitchen with an Eggplant : Confessions of Cooking for One and Dining AloneYou are not alone. You are not being singled out by the fates to suffer.
How to Be Happy, Dammit: A Cynic's Guide to Spiritual HappinessThus it amounts to the same thing whether one gets drunk alone or is a leader of nations.
Being and Nothingness