[Name] Dave's Syndrome [Source] Black Books [Symptoms] 
A condition which is known to affect Manny, it is triggered by being exposed to a temperature of at least 88°F (31°C). While the exact effects of the disease are not described, a scene at the end of the episode shows the results — Manny is driven to madness and totally ransacks the area outside the shop, before using a hot water bottle as a loincloth, grabbing a flaming torch and painting "EAT ME" on his stomach, whilst jumping on the roof of an abandoned car. Bernard dismisses it as "attention-seeking rubbish" throughout the episode.