This video reminded me of something i read years back and it goes like this...
There was a religious debate held between Shia scholars and Sunni scholars on Shiasm. On the debate day, all Shia scholars came and no Sunni scholar showed up. After 30 minutes one Sunni scholar showed up with his shoes on his hand. They asked him why he didn’t put his shoes outside; he said Prophet Mohammed did it because some Shias stole his shoes couple of times. So, all the Shias said there were no Shias during the prophet’s time and the Sunni replied the debate is over, you said it yourself.
I guess if someone tickles enough his/her opponent's emotion to a degree it takes over his/her reasoning faculty, you will have a good shot at him/her.