My 3-4 visits to the hairdresser each year usually go like this:
Me (settling in chair, removing glasses, closing eyes).
Hairdresser (warming up for 20 minutes of conversation): "So what do you do?"
Me (bracing myself): "I write books."
Haidresser (expressing false interest): "That sounds interesting. What about?"
Me (knowing what's coming next): "Computers."
Hairdresser (works in silence for 19 minutes).