A teacher was trying to demonstrate that his student was 'stupid' in front of the class.

'So, imagine you are walking down a dark street, late at night. You see two lights in the distance. What do you assume it is?'

Student: 'A car.'

Teacher: 'What kind of car? A Porsche perhaps? A Mercedes? Toyota?

Student: 'I don't know.'

Teacher: 'See, you're stupid! OK, what about if you only see one light?'

Student: 'A motorcycle.'

Teacher: 'What kind of motorcycle? A Harley? A Yamaha?'

Student: 'I have no idea. But may I ask you a question?'

Teacher: 'Of course you may.' As he looked at the student with confidence.

Student: 'You are walking down the same street. You see a woman dressed in high-heels, a mini-skirt, and fishnet stockings. She's leaning into a car window talking to the driver. Who do you assume she is?'

Teacher: 'A hooker, of course.' He said, smugly.

Student: 'Ah, but is she your mother, your wife, or your daughter?'