Prelude:
This is not in a very Christmassy vein, but at least it might end up as a financial windfall for the victim.

Optimist? Beggar belief by reading here.

And who are running this asylum? Sounds like they should be the inmates/clients/patients. Here is a telling excerpt:
a man "fitting the description" was brought by police to Graylands, where ...staff wrongly identified him as the missing patient.

He was then administered the antipsychotic drug Clozapine...
Epilog: Well, wasn't it WA that was touted the state of excitement? (Sorry to all WA-ers.)