Didn't we all have this argument around 2002? The last time we gave Mantis a good kicking?

When we bought Yawner Towers in 04 we paid around £1k for the survey (Mr teh Mantis offered his services for free, but we didn't want to take advantage of a friendship - doh).
Mrs Y instructed the surveyor - told him *exactly* what we intended to use the place for (ie continue as a guest house, but stop providing evening meals).
This clearly went in one ear and out the other. When he arrived to do the survey, the old incumbent gits Basil & Sybil told him that we were going to stop using it as a "proper" B&B, and use it for our own residence only. (they had a bee in their bonnets about anyone taking over THEIR place, but thats another story)
He took their word for it, and proceded to write out the survey and valued the place as a private residence.
We phoned him as soon as we got the survey to point out this error. He was very much of the "Well you keep changing your mind, and thats not what Mr & Mrs Wright (incumbent gits) told me". We had to remind him that WE were paying him, and we'd never changed our intentions once.
I followed this up with an email, claiming that the valuation (based on a private residence) was worthless. His reply was nothing short of a rant - ALL TYPED IN CAPITAL LETTERS TO SHOW US THAT HE WAS ANGRY AND MEANT BUSINESS - presumably. He eventually agreed to rewrite the valuation.
But even the survey - for £1k we got stuff like "Flat roof seems in good condition, but unable to check in detail. Recommend this is checked by qualified roofing contractor" - for pretty much every aspect of the house. Plumbing, construction etc etc. Every observation was qualified by a "..but you'll need to have this checked out by a....etc etc".
SO not a lot for £1k, and he'd covered himself against anything going titsup.
The flat roof? It fell in the day we moved in.