Helping others can be a beautiful thing. Not much feels as rewarding as knowing we actually made a difference in someone’s life. But what about when they don’t appreciate it? When we go out of our way to do something nice for someone only to discover that they either don’t care or, even worse, that they were just taking advantage of our good nature and using us for some cynical or nefarious purpose? These kinds of incidents can have a uniquely harsh sting, one that can make even the most caring of people swear that they will never help someone in need again. Here are Reddit’s wildest stories f…