Suave

I'm a market researcher, so yes I deal with it. Constantly. That's basically all my job is.

The first way I deal with it: I work as little as possible while maintaining some extra income (not the best way of doing it if you need money).

Second way: don't take it personally when they start talking shit to you.

Third way: just be prepared for the rejection.

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"Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions." - Albert Einstein

"Wise men talk because they have something to say; fools, because they have to say something." - Plato