FORT WORTH, TX – JUNE 08: (L-R) Michelle Gilliland, Todd Gilliland, driver of the #4 Mobil 1 Toyota, David Gilliland and Taylor Gilliland pose for a photo as Todd receives his high school diploma prior to the NASCAR Camping World Truck Series PPG 400 at Texas Motor Speedway on June 8, 2018 in Fort Worth, Texas. (Photo by Chris Graythen/Getty Images)