Three smiling corpses are lying in a morgue in Perth. A detective goes into the coroner's office to find out the cause of death.
The coroner walks over to the first dead man. "This is Chris", he says. "He died after winning $2 million on the lottery".
He then moves onto the second smiling corpse. "This is Johnny" the coroner says with a grin. "He died having vigorous sex with Ruby Smith".
Finally he moves onto the last smiling corpse. "This is Dennis", says the coroner. "He died after being struck by lightning".
"Then why in the hell was he smiling"? asked the detective
"Oh", says the coroner. "Our guess is he thought he was having his picture taken".