I was at a gas station once when one of those big lifted trucks came speeding in and parked right behind me. Like, I had to jump out of the way or get hit, it was coming that fast and that close. Guy gets out, truck still running and starts to pump his gas. I'm saying nothing, as he has that look that says, I'm looking for a fight, and I'm finishing up as is. Well another lady on the other side of the pump does say something along the lines of "You need to turn off your car, that isn't safe", to which he proceeds to calmly agree and ceases pumping the gasoline while he turns off his.
Just kidding, this is the SS thread, he looses his freaking mind and starts screaming about how he needs to keep his A/C running because he's not getting back into a hot car. She counters that fire is a heck of a lot hotter (well she isn't wrong), and it pretty much goes down hill from there. They were getting in each others faces and yelling when I hopped in my car and got the heck up out of there.
On the discussion of Yelp: I had a company I had done some work for in the past try to hire me to write a positive review of their company. On yelp and any other online media. They figured I could create a few different accounts using different email address and make the company look good. I refused the job, reported them to the BBB, and have turned down any work from them since.