Hourglass

A guy walks into a bar and takes a seat next to a very attractive
woman. He gives her a quick glance then causally looks at his watch
for a moment.
The woman notices this and asks, 'Is your date running late?'
No', he replies, 'I just got this state-of the-art watch, and I was
just testing it.'
The intrigued woman says, 'A state-of-the-art watch? What's so
special about it?'
The guy explains, 'It uses alpha waves to talk to me telepathically.
The lady says, 'What's it telling you now?

'Well, it says you're not wearing any panties.'
The woman giggles and replies 'Well it must be broken because I am
wearing panties!'
The guy smiles, taps his watch and says,........ 'Damn thing's an hour fast!'