Picard: One of us is hungry.
Crusher: That would be me.
Picard: Would you mind thinking of something else? You're making me hungry.
Crusher: What do you want me to think about?
Picard: Something other than a large bowl of vegetable soup.
Crusher: My grandmother used to make it with peas, carrots...
Picard and Crusher have been taken captive and had devices put into their brains that let them experience each other's thoughts.....whether they want to or not.