We just sent to an English relative a DVD by a clinical psychologist called Nigel Latta. It's called 'The Politically-Incorrect Guide to Teenagers.' The constant theme is that they are basically not right in the head. So Mrrzy is quite right.

Nigel Latta is a very, very funny man. The DVD is a collection of lectures given to a large audience composed largely of parents, but with a scattering of teenagers there. The teenagers mostly looked stunned and thoughtful, the parents were almost crying with laughter, when they weren't looking wryly at each other.