a freind of mine had a similar problem, As stated above, best thing to do is keep 2 of them with a family or freind, and just modify the kennel to something else for the time being, after a few weeks of checking they will realise that everything is sound, but he was caught out once, and just stated he was minding them for his brother and put them back at his brothers house untill everything died down a bit.
Was a pain in the ass hideing 2 dogs but they made checks as he had a on going feud with his next door neighbour who is a total tit i may add.
after a while everything was ok, he go