Eat a rat get nicked?

Whatever anyone might think of reality TV shows, and, in particular, "I'm a Z-List Celebrity Get Me Out Of Here", this story in the News of the World is absolutely bloody insane.

Apparently, the TV chef, Gino D'Acampo, along with Stuart Manning from the "yoof soap opera" Hollyoaks have been charged with cruelty by the Australian RSPCA after they killed and ate a rat when they found themselves in low-rations exile camp.

By all account there is a belief that the rat was planted by the TV show to create some drama and was actually tame and not wild, thus chopping it's head off and eating it was an act of cruelty by the two.

It's a bloody rat for Christ sake in an out-door scenario where food was scarce. What were they supposed to do, stun it first?