A man recently walked into North Carolina restaurant Sup Dogs and ordered two waters before rushing out and leaving his server a $10,000 tip in cash and a note that read, "Thanks for the delicious water." Server Alaina Custer tells The News & Observerthat she initially thought someone was playing a joke on her. However, it was revealed that the money was left by a YouTube star known as Mr. Beast, who regularly tips huge amounts of money to people and posts footage of their reaction afterward. Custer says she realized she was being filmed by two men at another table, and that Mr. Beast (real name: Jimmy) later returned to meet her and the rest of the staff. "I was so blessed to have that money," she gushes. "I mean, most of us that work at Sup Dogs are broke college kids and that's going to help me out so much. We got to all split it up, which will help a lot of people."