Something about B. made me nervous. She was jumpy, manic, impulsive. When she had a thought she'd go "Oh oh oh!" and blurt it out at once. And there was an aura of mischief around her too. There was that time she told me she had the credit cards of her bosses at two jobs where she'd been fired. She told me once, what if I ordered things and had them shipped to your house? No one would ever know. I changed the subject.