" And my worst problem was laughter. I would go into fits of laughter and I couldn't stop. Anything could set me off. The sheer madness of my own position might set me off.

This can still happen to me fairly easily. No loss, no pain, no deepening understanding of my predicament changes it. Something strikes me as funny. I begin to laugh and I can't stop. "

― Anne Rice , The Vampire Lestat (The Vampire Chronicles, #2)