Uncle Jun got jokes for days , lol.
And Paulie himself thought he was going to get whacked. But about that old ralphie joke about johnny sach's wife that tony kept asking Paulie about just felt like a test to see if Paulie would crack and start telling under pressure . He even mentioned in the episode that he was scared about what paulie would do if he really got questioned under pressure. BUT Tony sirico(paulie walnuts) ,when signed his contract for sopranos got promised that his character will never be a snitch. He wouldnt take the roll if his character became a rat, lol.