Ten Types 
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"Keep backtracking"
YOU: Your anagathics were in the bags, and your shunt valves and you don't even have a UV suit to go outside.
CUSTOMER: What are you, some kind of Arcturian parrot? I told you that already. What are you going to do about it?!
R&R: Although backtracking is always a good idea because it shows people you are listening, people in a Tank mode have a very short attention span. You should backtrack two to three sentences at the most and then create some forward motion. In some cases you can get away with more backtracking but we have given you an especially impatient Tank to make the point. Tanks are demanding action. You must acknowledge what they say briefly and then move forward.
YOU: Move forward by;