Not buying but selling. Posted a car for sale on Craigslist for what I felt was a high, but fair price. Had someone call minutes later, show up the next day, hardly even look at the car, no test drive on a 25 year old car, offer me 20% OVER my asking price, and pay me in $100 bills. Easiest car sale ever, but felt too good to be true, and gave me all sorts of creepy vibes.