You know the fat lady is about to sing when a dictator unleashes hell from above over his own unarmed, civilian compatriots, and bombs parts of his capital city. That's a bridge too far even by the unspeakable standards of Western-backed dictators in the Arab world.
You know the (ghastly) show may be over when Sheikh Yousef al-Qaradawi, one of the most popular Sunni authorities in the world, not least because of his weekly show on al-Jazeera, issues a fatwa - "I am issuing a fatwa now to kill [Muammar] Gaddafi. To any soldier, to any man who can pull the trigger and kill this man to do so" - and then prays live, on al-Jazeera, for the end of the Libyan dictator ("O Lord save the Libyans from this pharaoh." When he finishes, the al-Jazeera anchor says "Amen").
It was not enough to deploy "black African" mercenaries in a shoot-to-kill rampage in Benghazi. Already on Sunday, Sheikh Faraj al-Zuway, leader of the crucial al-Zuwayya tribe in eastern Libya, had threatened to cut oil exports to the West within 24 hours unless what he called the "oppression of protesters" in Benghazi was stopped.
Akram Al-Warfalli, a leader of the al-Warfalla tribe, one of Libya's biggest, in the south of Tripoli, had told al-Jazeera Gaddafi is "no longer a brother, we tell you to leave the country". The 500,000-strong Berber, Tuaregs from the southern desert, are also against him. When you have four of your key tribes - the spine of your system - marching on Tripoli to get rid of you, you better watch out.
