Last resort

During the rural recession, Dave got a job working as signal post on the Cairns to Townsville line. After a couple of weeks, there was a spot inspection by the local boss. 'What would you do if you had two trains coming at each other on the same line?'
Dave replied, 'I'd put all the lights on red and stop them.'
'Your lights are out of action," says the inspector, "what now?'
'I'd fire the flares,' said Dave.
'They're damp and won't work,' snarls the inspector, 'and by this time the trains are really close'.
'Well,' says Dave, 'as a last resort I'd go and get Mabel.'
'What could she do?' growls the inspector.

'Nothing,' replies Dave, 'but she's never seen a train crash before."

Sender: Do Manh Thang "t0domanh@************"