Not for me

A worthwhile discipline: when giving feedback, separate "not for me" from "not for anyone."

If someone brings you a business plan for a power plant that will use perpetual motion as a power supply, it's fair to say, "this will never work, it's impossible."

If someone brings you a business plan for a chain of hot dog sushi restaurants, it's fair to say, "this is disgusting, I will never go here," but not helpful to assume that it won't work anywhere under any circumstances.

You can say you don't ...