He rests both hands on the trunk of the tree and hangs his head for a moment, taking deep breaths, trying to get himself back under control. His blood is still churning but he can't pinpoint the reason, other than the realization that he'd been so unaware that someone had very nearly stumbled right over him. If the other man had meant him harm surely he'd be dead by now.]
It's... it's alright. It's not your fault. I wasn't paying attention.