Well that was entertaining ,the ex jw needs to remember ,in my opinion ,the service school lessons from of old when dealing with one of these old farts.
Lets review ..........THE TALK
short introduction raising points
the body make succinct points explaining with facts and EVIDENCE
conclusion tie up all points in summary making reference to the introdution
He said he had been there the day before so be prepared with paper evidence to back what is said.
Definitely points for courage and remember there is nothing frightens the crap out of a witness more than EVIDENCE on paper............it's all apostate writing from the devil ya know.
As for the old fart , he was useless like a lot of blokes like him who are in JW's ,when confronted with irrefutable evidence they cough and splutter and then get angry because they have lost control of themself and their argument.
I reckon try again with evidence and it will all be over in a short time and you can enjoy your day knowing failures in life like the old fart live as legends in their own mind and you tried but they failed.