by Kristen HarrisBuzzFeedBuzzFeed StaffAs a staff writer at BuzzFeed, I write about all things celeb and pop culture. Oftentimes, celebrities' interactions with their fans are really sweet. I've had a few meaningful encounters with my favorite celebs that I know I'll never forget. However, in these moments, respect is a two-way street, and fans need to remember to treat their faves as human beings. Here are 21 heartbreaking and horrifying experiences celebs had with fans: 1.