Another Hoaxer

I clocked it as a hoax as soon as it came in. We’ve been getting regular hoaxes from a male who gives various addresses around a dodgy council estate in the East End. He’s cleverer and more calculating than Banana Man - he never gives the same address twice, so we can’t simply tag the location as one we do not send to, he uses different mobile numbers and call boxes, so we can’t recognise him by the number, and he gives outlandish yet plausible diagnoses - “I’ve stabbed my wife”, “My girlfriend has overdosed and isn’t breathing” and, on this occasion, he told us he’d been shot, howled in pain, then dropped the phone as if passing out.