Let's assume I'm thinking about ___  - am I liable to prosecution?
I assume that having thoughts of any kind is not illegal and therefore cannot be prosecuted. We are not in "Minority Report" - http://www.imdb.com/title/tt0181689/ - situation just yet.
What happens if I express verbally or on Facebook or on my personal blog:
- I had thoughts about ___
- I was thinking about ___
Do these statements put me in a prosecutable position?
 Related question would be - how do I express my thoughts without fear of being prosecuted?
If I engage in a discussion with a doctor, a psychologist or a lawyer - privileged information kicks in - https://en.wikipedia.org/wiki/Privilege_(evidence) - however in certain circumstances they are obliged by law to take action.
Is talking about crossing the line crossing the line?
(just like spammers sending a message asking me is it OK to send the actual spam)
Do I have to make a formal agreement with a chartered professional before privileged information applies? (as opposed to an informal conversation during the research phase)
I would like to operate my language in a manner that would not put me vulnerable to misquotations and misinterpretations. Maybe there is a magic formula such as:
I'm a young, healthy, reasonable individual who wants to discuss sensitive manner - I want to remind you about privileged information - I do not constitute a threat and you should rest assured.
Deep in my heart I would like to be able to communicate in public.
I don't want to use public WiFi, VPN, virtual machine, TOR some darknet forums and fake identity if I could only say what I really think. I hope that this will happen but first I need to establish some fundamentals.
Can a person be prosecuted for their thoughts?