If you're going to do some shady work, then you should at the very least do some research on your victims. Like, that's villainy 101. You can't scam a scam artist, ya know? You're already getting chased by karma, you shouldn't give it any reason to catch up. But, oh boy, when karma does catch up is it satisfying! This kind of justice got epically served recently by a guest who almost got scammed by the host of a condo he booked for a long weekend. According to this reddit post , he and his frie…