They eat their own.
That's another trait they have in common with the Nazis in Germany and the communists everywhere!
BTW, if I heard correctly on Rush Limbaugh's show today, Massa claims that Rahm Emanuel came up to him totally nude in the House gym shower room (since Emanuel is no longer a House member, his presence there may have been against the rules) and started to argue with him about his intention to vote "No" on the 'Rats health care bill. Massa may resign from his seat.