Years ago I worked for a local authority in the housing rents section. One day I answered the phone to a woman who proceeded to report her next door neighbour who she said was paying a differential rent based on her social welfare payment. This person she said, was actually working in a well paid job and so was cheating "us tax payers".
I asked her for the person's name and address so that we could investigate. She gave it to me.
I actually knew the woman she was referring to as she'd been in to my office a couple of weeks previously to check that she was being correctly assessed on her earnings. She was.
In the course of my conversation with this tenant, she said to me that she loved her house but that some of her neighbours were extremely nosy. She told me that she'd told them she was being assessed on her SW payment, to wind them up! She said she knew it drove them mad.
Now obviously I dealt with the complaint as per protocol, passed it to an inspector to follow up and of course tenant was correctly assessed and fully up to date with her payments.
Complainant rang me back a few weeks later, fuming that tenant was "still getting away with it". When I informed her that I couldn't comment on the matter, FoI etc., I got an earful of abuse but I didn't really mind, I was inwardly amused at just how worked up she was thinking that her neighbour was diddling the system when in fact she was an excellent tenant, who just enjoyed winding up a nosy neighbour!