Fortune

If I kiss you, that is a psychological interaction.

On the other hand, if I hit you over the head with a brick, that is
also a psychological interaction.

The difference is that one is friendly and the other is not so
friendly.

The crucial point is if you can tell which is which.
-- Dolph Sharp, "I'm O.K., You're Not So Hot"

[W_z_rd]

So ? Do you know the answer ?

I'd never posted it if I was sure my answer is absolute.