Had a classic call from a "passerby" on yesterdays shift! Cat A Red Call to "50 year old male unco not breathing" in the street. Blues & Twos go on...progressive drive to location...avoiding all the Saturday afternoon shoppers...interesting creative driving observed enroute...arrived scene to find....bloke with front wheel puncture to his push bike!!! The passerby had rang from a mobile in car and did,nt bother to stop to check his suspicions on what he had seen, or what he had believed he had seen! No history of fall from bike/collapse from seeing said puncture on wheel...nothing at all to suggest anything approaching the need for a Cat A Red Call! The caller "passerby" must be living in a parallel universe seeing things in the other dimension!