*Force the conversation to a phone call where your stupidity can't be logged1,recorded1
and warehoused easily1 so the programmer cant go back through an old email
and prove that you did originally request 'x'.1
1 For Now.
Anything that records phone conversations makes a little beep, so that's obvious but er...you can just grab whatever's coming out of your computer's DSP (think Skype)...store the stream then compress it to an MP3 later. Technically you're supposed to alert the other party that you're recording him, but you're not taking the guy to court (ideally anyway), just "reminding" him what he actually said.