Paging whet!*
(*when he wakes up)
How dare you suggest that our resident Socialist Worker is anything less than industrious. He's feverishly studying medical textbooks in preparation for the medical assessment that the Tories (and Lib Dems) have promised him. They're unlikely to swallow a story about a bloke who drives a car being too sleepy to work so he's looking for a disabling illness that can't be diagnosed by physical means, only by listening to a list of symptoms from the patient.
What ailment could go on Whet's new biff chit? Here are a few to get you started:-
Depression (catatonic is always good)
PTSD (the NAAFI once ran out of egg banjos - he keeps getting flashbacks - the horror, the horror)
Bipolar disorder (refuse to sit down, keep telling jokes, then start crying)
Explosive diarrhoea (bring the evidence to the interview - they'll sign your chit in no time)
Can you think of any more?