Problem with my windows
The last one I had told me they had detected a problem with my windows.
I tried to tell him that my widows were all working fine. They were double glazed, they all opened and closed really nicely and were really sparkling as I'd just had them cleaned.
He seemed to get very irate at this point so I started laughing to try and lighten the mood. Unfortunately this only seemed to make him more upset and he hung up.