What is the name of the disorder in which a person continues to ask question after question? (It's not OCD)
Example:
John Doe: Why did you buy a new car?
Jane Doe: The old car needed too many repairs.
John Doe: Why did the old car need too many repairs?
Jane Doe: Because I had it so long and replacement parts are expensive.
John Doe: Why are replacement parts for the old car expensive?
Jane Doe: Because there is not a great demand for the parts.
This line of questions and answers could continue indefinitely...