And when it's not them, it's the former government employees:
The 54-year-old, who had a PhD in neuroscience and said he previously worked at Government facility Porton Down, suffered from bipolar affective disorder, the court was told.
But are we sure he was crazy?
He told police he had also written a letter to Boris Johnson criticising his attitude to Russia...
Hmmm, not convinced.
...and a letter to then Labour leader Jeremy Corbyn in which he praised him.
Ah. OK then.
Mark Pritchard, defending, said Doyle had been living with agoraphobia since 2013 following the death of a friend.
How'd he get out to the post office then?
Joseph Allman, prosecuting, said when police raided Doyle's home in Fir Street they found more than 245,000 indecent images of children on a laptop.