Quote from Phoebe in The One with the Ring
Ross: What was the deal with you and Chandler blowing us off before? Phoebe: That was so weird, huh? Ross: Why did you do it? Phoebe: I didn't do it. It was Chandler. He's mad at you. Ross: What? Why? Phoebe: Oh, please. I think you know why. Ross: I can't think of anything. Phoebe: Come on, Ross. You're a paleontologist. Dig a little deeper.