Most hobbies are fairly commonplace; things like reading, writing, or crafting take up the spare time of most college students. Aaron Shepperd's hobby, however, takes a messier, more competitive form: paintball. "I played paintball at a 12th birthday party that I went to when I was younger and just fell in love with it," says Shepperd, an aerospace engineering senior at The University of Alabama in Huntsville (UAH). "Especially when I realized that there was a competitive aspect to it."