Joyce said many claimants were set up for a fall even before they came into her office in Cadogan Street, Glasgow.
She said: “If they made it in by themselves, that was seen as a sign they could function.
“They also had to fill in a form. If they did it, it showed they could think, write and were capable of managing.
“We also had to assess their appearance. If a woman was wearing make-up and was nicely dressed, she was deemed as functioning and capable.
“If someone came in with a toddler in tow, they were doomed because if they could manage a child, they could surely work.
“If someone had a pet, they were able to function and if they smiled while talking about a pet, I had to mark down that they smiled spontaneously and were therefore not depressed.
“It was so unfair. There could be a very depressed or ill person sitting in front of me but on paper, thanks to the leading questions I had to ask, they could be judged fit to work.”