I disagree with your rule #1 concombres.
Mine is...
Never tell a soul.
Not your bestie, not your brother, not your GF, not your most trusted ally in life or death. No one can betray you accidentally or deliberately if they don't know.
If I'm going to share "something" with my friends I will literally go out to get it, even if I'm at home. I'll take whatever I'm fetching with me and bring it back. It never came from me and my "friend" won't deal with anyone else. Call me overcautious if you will, but I'm extremely attached to my freedom. Even more so now I've got children.
Girlfriends break up... hmmm, now how can I hurt that guy? Hello police.
Besties and brothers get caught for serious things... How can I avoid 20 years prison? Well, I know this guy officer.
These two situations happen all the time. Everyone thinks it won't ever happen to them and the people they love love them back. You've known these people people all your life and more. But people are stupid, they blab, they make mistakes, they get scared and they double-cross those most important to them in momentary lapses of reason. They may regret it the rest if their lives but that will be poor consolation for you from the inside of a jail cell.
If you want to chatter about your extractions and stuff you've got the internet, that's what it's here for.
Secret squirrel stashes his nuts and never tells where they come from.
The nearest we ever come to knowing truth is when we are witness to paradox.