An old Scotsman turns up at Perth Airport customs. The officer asks him why he's come to Australia. He says, "I'm here to immigrate". The customs officer is surprised and says "sir, no disrespect but you are very old and it seems strange that you want to immigrate now. Why?". "Well" the old man replies, "when I was a boy in Scotland i had never heard of homosexuality, then when I got older I started to hear about it, years went on and it was made legal, just recently they have started talking about legalizing gay marriages, so I've decided to get the fuck out before they make it compulsory!"