Erik Engstrom reports of a *gasp* G-2 malfunction:
"I was scribbling a shopping list in my moleskine this morning with my favorite Pilot G-2 0.5. A bit later I went back to make an addition, and discovered that the pen wasn’t writing anymore. Closer examination revealed that the tiny ball had popped out of the tip, and a little spring-loaded wire was sticking out in its place. Strange! Alas, finding a ball that measures less than one millimeter in diameter in the carpet was utterly hopeless, not to mention the challenge of putting it back, so I gave up after about two seconds…"
Full report at his blog.