Guild Wars 2

Not infrequently, my character will spontaneously fire an arrow at a neutral target even though I had not been in combat and had not triggered any weapon skills.

It happens when you’re too close to them I believe.
Slightly unrelated but I find it silly that the autotarget even targets yellow mobs, it killed me multiple times while I was down and trying to hit the enemy that ran out of range.
I just turned it off afterwards.