Former Real Housewives of New Jersey star Danielle Staub returned to Bravo for one night to appear on Andy Cohen's Watch What Happens Live on Sunday.Surprisingly, Staub expressed sympathy for indictment-plagued Teresa and Joe Giudice -- even though Teresa famously flipped a table and called Staub a "prostitution whore!" on a famous RHONJ meltdown. Funny enough, Staub has no affection for Teresa's sister-in-law and frenemy, Melissa Gorga.