We get a kick out of David Dobrik's pranks, but it's the generous ways he gives back to people that we love the most. While out and about, David met a guy named Kevin. Kevin told him that his friend Melissa is a huge fan of David's vlogs, so they decided to surprise her. At just 21 years old, Melissa is a single mom who works three jobs, goes to school, and takes care of her mother who just got out of surgery. David really wanted to help her out, so he offered to give her everything in his pocket...which, lucky for Melissa, was a check for $25,000!