Originally Posted by IAMORGAN

I think it’s deadpan British humour.

I don’t think it’s an aborted takeoff as the aircraft never began the takeoff roll. What probably happened is the crew held in position but had to vacate because of incoming aircraft which required them to taxi down runway and vacate. The F/D crew didn’t have the cabin secure.

This is what happened in Dublin another time https://m.youtube.com/watch?v=uWg7IpphPc8