This is good advice if you never have to deal with the person again. In other words, this is the advice used by used car sales people, etc.
In normal business negotiations this is very bad advice. Using tactics that ask for ridiculous concessions paints you as either stupid or manipulative. This type of attitude will get you classified as an asshole, and customers/vendors wont ever want to deal with you again.
Negotiating a single deal with outrageous outcomes is not as important (for most businesses) as negotiating 200 deals successfully with the same customer.
In normal business negotiations this is very bad advice. Using tactics that ask for ridiculous concessions paints you as either stupid or manipulative. This type of attitude will get you classified as an asshole, and customers/vendors wont ever want to deal with you again.
Negotiating a single deal with outrageous outcomes is not as important (for most businesses) as negotiating 200 deals successfully with the same customer.