Another inter-team incident followed shortly afterwards when Marcus Ericsson missed his braking point and ploughed into the rear of his iSport team mate Sam Bird in the middle of the Swimming Pool section. Finally, just to bring proceedings to a crunching halt, Herck lost control of his Coloni exiting the Swimming Pool and went into the barriers.
Several cars were put on notice that they were under investigation for incidents during the session, including Dani Clos (for blocking faster cars) and Johnny Cecotto Jr for overtaking under yellow flags; the Dams incident will also be reviewed, GP2 officials said.
In line with Monaco's unique, topsy-turvy schedule, the feature race will be held tomorrow on Friday morning 11.15am (10.15am BST), allowing the race to run without potentially affecting the F1 headline event should a crash result in damage to the circuit and lead to a delay.
And based on today's evidence, a crash or two is more than likely ...
Full qualifying times and positions