Dial 1900 HI-JACK

All my train PA ever says is "Connex apologises for any inconvenience caused"

From News.com.au:
MELBOURNE'S train temptress has struck again.

However police and rail officials have met to plan an end to her saucy crime spree.
The woman broke into a cabin on a peak-hour Frankston train on Tuesday night and broadcast X-rated praise of the driver to stunned commuters.

http://www.news.com.au/story/0,10117,17799630-13762,00.html