She thought for a moment before replying. "You know," she said, "personality flaws can be divided between those that are load-bearing and those that aren't. Load-bearing personality flaws are a response to a current need or situation. Maybe not the best response, but a response nonetheless. Sometimes the need goes away, and the flaw stops being load-bearing, and sometimes the flaw develops without a need - a chemical imbalance, for instance. The way to handle a load-bearing flaw is very different."
"Wait. What does that have to do with fruit?" I asked, irritated.
Then I realized I'd been talking to a theremin all along.