Hopefully if Moira has got a brain tumour, it will be benign and, after an overnight stay in 'otten General, she'll be back to humphing bales around and sorting out the as yet invisible bull.
On the plus side, we have had no tom thus far but on the minus side, more of Caleb['s stupid shenanigans. They obviously don't have CCTV at the yard so Caleb was able to nip in and pour whatever in the tank in broad daylight.
He and Tom must be sharing the invisibility cloak.