Should Article 27 of the Constitution be invoked?
The opposition can force a Referendum on any legislation relating to bailouts if only 1/3 of sitting TDs sign a petition to the President that is supported by the Seanad.
Government has been defeated in the Seanad, so its quite possible that a vote to support a petition would succeed - majority is slimmer than the Dail. Would also put each and every Senator on the spot - who would like to be the Senator who refused a Referendum?