On a Go Flight from Belfast, where loading SLF had been erratic - they called the back rows, but did not bother to call any of the fronts, leaving passengers to sort of guess that they should go.
Captain, tore around airport (I exaggerate, but the Flight Attendants were having a difficult time staying up right) and got us in the air.
Came on to apologise for not saying hello, due to the "incompetent ground crew". Pulled no punches.