her dog has pissed on all of the carpets. There are 4 months of dishes in the kitchen similar to the opening scene of 'Withnail and I'. Someone has done a turd in the bath and no one will admit to it so no one has cleaned it up. There are fag ends floating in off milk and none of the lightbulbs work. There's a huge dead rat that they've called Piggy and it has been mounted on a post in the hallway like William Golding's shit first draft. There are 2 used condoms on the front path and one of them has been blown up and fashioned into a sort of talisman mascot for the house with a face drawn on the front and hair taken from the matt clogging up the broken shower
She wants to take all of these items and habits to your house so that they don't impact her sale
I would like to amend my previous reasoning above to include:
A new place for 6 months will cost £800/month in rent
£120/month in wifi, gas, electric, water, council tax
£15/month in parking
£250/month in eating your food
£10,000 in the increase in sale value from removal of Piggy, the nut job and the turd
£5000 for her half paying for a lifetime of therapy for her old house mate
All in all, 6 months of this move will earn her £22,110
She has likely already spent this money on magic beans, or at the races, in anticipation of your acceptance. Now, in her mind, you owe her £22,110 and an apology.