Re: $200,000 for a tennis lesson...
Somebody should tell the winning bidder that "tennis lessons" with an ATP player are not the same as the ones cougars have at the club with hunky instructors. They involve clothes being kept on, for the most part.
Trolling is defined by Herring as baiting and luring others into pointless and time-consuming discussions.
4 criteria of trolls:
1. Appearance of outward sincerity.
2. Posts designed to incite anger or "flames"
3. Posts designed to waste everybody's time with useless argument
4. Desperate desire for attention, any attention at all
Recognize them, don't engage and put 'em on your ignore list where they belong. Feed a troll and you're just encouraging their attention-seeking.