Oh Bexter, I know what you mean. We had our hearts set on a little guy at London Cat Rescue back in 2007, but when we enquired he'd been adopted out the week before but the website hadn't been updated.
We were invited down anyway and ended up being introduced to Theo who was not on their website yet due to recovering from an RTA.
Theo went straight for my OH and nuzzled into his neck purring like a tractor - well that was it really - decision made! I didn't even get to vote
Two weeks later Theo was out of his enforced cage rest at the rescue and making himself right at home here, and has remained OH's cat ever since.
I think they know, y'know, when there's someone needing a bit more convincing? By the way, get a copy of Tom Cox's "Under the Paw" and leave it lying around, I bet your OH will feel much better knowing there are perfectly sane Cat Men too.