Quote from Phoebe in The One with the Mugging
Ross: You wanna know how she knew him? Because Phoebe used to mug people. Monica: Seriously? Phoebe: Well, I'm not proud of it, but, you know, sometimes when I was living on the street and I needed money for food and stuff- Monica: Phoebe, that is awful. Phoebe: Okay. I wasn't rich like you guys, okay? I didn't eat gold and have a flying pony. I had a hard life. My mother was killed by a drug dealer. Monica: Your mother killed herself. Phoebe: She was a drug dealer.