Okay so i recently started doing dissections in my biology class and if you’ve ever done a dissection you know that you have to flip the left and right because you are facing the specimen, which leads me to a head canon:
Scully constantly gets her left and right confused. Not when shes autopsying, thats the only time she actually knows it, but shes terrible at giving and taking directions. She’ll look at a map and tell Mulder to turn right only to realize three miles later that they were supposed to go left. Mulder will tell her the paper she’s looking for is in the pile on her left and she only looks in the right stack 1 in 3 times