I envision my mind as a plot of grass full of sheep surrounded by a perimeter of electric fence. If I'm not constantly vigilant and aware of my thoughts, the electric fence shuts off, the sheep jump out, and my panic gets away from me. The chance for an attack is especially bad just before bed or when I'm distracted or lost in thought in the car, causing me to slap myself in the face as hard as I can or bite the inside of my upper arm. If I can feel the pain, then I am still alive and can begin to focus on rounding up the sheep again. See? This makes perfect sense in my head.