Over your shoulder
He had been climbing trees since he was 3, nothing too high until mid elementary school but then it became a game. She hadn't walked around the woods too much aside from hiking with her father. Now into the their late 20s they both found themselves camping and enjoying what the other knew. He was afraid of the dark and she was afraid of heights. Together they went on overnight trips and conquered their fears. Nighttime was tough for him, at least she was there-to rub his back and tell him the forest was not going to cave in on him. The trees and heights stopped scaring her very soon, it gave them smiles to help the other get over childhood apprehensions.