It was a well known fact around the Task Force that you had anxiety. When you got too nervous or anxious, you would scratch yourself, often until you bled.

You and Gaz were together in a truck on the way to a recon mission. You didn't exactly know why, but you felt particularly anxious. You were sitting in the passenger seat while Gaz drove, scratching your arm while looking out the window until you felt him hold your hand.

"Don't worry about it. We'll be okay, yeah?" He smiled reassuringly.