9x15 "The One with the Mugging"

Phoebe and Ross get mugged by one of Phoebe's old friends from the street (Kyle Gass), and Ross finds out that Phoebe was the person who had mugged him when he was a teenager. Meanwhile, Chandler gets a job in an advertising internship, but feels out of place due to his age. Joey auditions for a play starring Leonard Hayes (Jeff Goldblum), but must go to painful extremes to get the part.