I just had a horrible encounter with some arsehole when I phoned up about the puppies he had for sale. Totally standard questions about the parents and their health, if the puppies had been vet checked etc.
He got more and more irate saying things like the above along with 'who the hell knows that' and 'if they were fucking KC registered I'd be charging £900'. I asked about a specific disease that the breed has which would be indicated in the parents that they were clear and he just swore and said 'they're fucking fine' etc etc
I didn't actually disbelieve his answers, really did sound like it was just his family pet and his parents dog but his aggression was so off putting 

And then he hung up on me after I asked them