Quote from Rachel in The One Where Phoebe Runs
Rachel: I don't know how to get out of it. I mean, I live with her. Monica: Why don't you just be straight with her? Tell her the truth. Rachel: You're right. I should just tell her the truth. Phoebe: Hey. Rachel: Hey, Pheebs, Monica tripped me. I don't think I can ever run again, ever!