Visible crew/equipment: When Missy runs through the house at the start the stage lights are reflected in her sunglasses. (00:02:25)
A Sneeze, Detention, and Sissy Spacek - S1-E13
Visible crew/equipment: When Sheldon is running away from Mary in the garage, the set lights are reflected in his helmet. (00:18:00)
Answer: Some people just have a dislike for someone that can't be explained. Could be as simple as the way he's dressed.