BE careful out there. Colossal cats are roaming the region in York prides, ready to scare the willies out of late-night lorry drivers.

The number of sightings of these massive moggies has shot up, providing irrefutable evidence of their existence, according to the British Big Cats Society (no vested interest there). The sceptics will be, well, sceptical. They require photographic or video proof. For that, we must set a trap.

Is there anyone brave enough to stand behind an enormous cat flap and open a giant tin of tuna?

Updated: 09:40 Thursday, March 16, 2006