This is a standard negotiating tactic, right? Ask for something really difficult AND for something entirely unacceptable. Then, after pressure is applied, drop

This is a standard negotiating tactic, right? Ask for something really difficult AND for something entirely unacceptable. Then, after pressure is applied, drop the entirely unacceptable demand and "show your flexibility". And there you go, you made a concession, now the other party must make a concession ...