"Not sure if trying to "trap" the liar is always the right way to go." Agree almost never the right thing to do. Trapping people makes them dig in their heels

"Not sure if trying to "trap" the liar is always the right way to go." Agree almost never the right thing to do. Trapping people makes them dig in their heels typically as opposed to giving them a graceful way to give you what you want. All of this is situation specific of course but as a rule I never call people out on their lies in negotiation. "Once I had to work with a freelance web master and we were trying to cancel his contract and make him transfer the domain name to us (an association I was working for)." Honestly, best way to handle this type of things is to go the "scary lawyer letter" route. Try nicely (without threatening) and if that fails get an attorney to write the "scary lawyer letter". At that point the idea of actually getting some money (rather than having to hire an attorney to defend a verbal contract) would seem very attractive. There are other methods that can be employed (UDRP, trademark law) however they are more expensive and depend on the specifics.