come in here and list guerrilla ways of letting people in the middle let you talk to the end client directly
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* Refuse to answer any questions from the Main Person and when person in the middle freaks tell them to give the Main Person your email/chat id/phone
* Say "I'm not gonna take your job you [insulting adjective] [garden tool] it's just gonna be easier if we could talk directly"
* Get Main Person's contact details and just pop up on their radar.
* Explain to people in the middle that they're unqualified to do their job and can't communicate well with people anyway
* Stop caring. Who cares? Exactly. Let's just finish this thing and keep it moving.
Okay, real solutions:
1) Build trust with & indispensability for middle peoples so you're part of "them" in their minds
2) Don't sign onto things that have different layers of communication like that
3) If there has to be different layers of communication like that then if the communication is approaching real time ("what's the answer to this question, now?") attempt some ninja move that gets you into a conference call or chat with Main Person