Yeah, but they were about to declare him "fit and able to work"...

Spotted by Bob E in The Independent:

A disabled man was trapped in a centre run by Atos, which assesses fitness for work, when the fire alarm went off and staff evacuated the building, leaving him behind in his wheelchair.

Geoff Meeghan, 32, who has early-onset Parkinson’s and is unable to walk more than three metres without support, was being assessed on the second floor of a building in Neasden, north-west London.

Disabled people arriving for appointments are supposed to be asked if they can exit the building without assistance, but Mr Meeghan, pictured, was not...
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However, it turns out that he was not completely abandoned as the headline suggests:

Disabled people arriving for appointments are supposed to be asked if they can exit the building without assistance, but Mr Meeghan, pictured, was not. He waited with his support worker Nick Ephgrave, from the charity Parkinson’s UK, and his sister, who acts as one of his carers, before being called in for his assessment. A few minutes in, the alarm sounded and the doctor present said they needed to evacuate.

... which sort of ruins the punchline.