I used to watch TedTalks all the time, and one of my favorite presenters is James Veitch. He has been on a few times, and it's well worth watching all of them.
They both are on the same topic, responding to spam emails. His image, delivery, and humor all come together perfectly as he absolutely wrecks a spammer at their own game.
This is his first presentation and probably my favorite. He follows it up with a fantastic sequel and wraps it up with with a third presentation.
This is what happens when you reply to spam email
More adventures in replying to spam
The agony of trying to unsubscribe
He started a youtube channel but doesn't post all that often, but he is a really funny guy. He also has a lot of short videos you can find on youtube on different scam emails he responded to, just look for his Scamalot series.