So I decided to go on a suicide mission and take on the legendary deathclaw. I figured at Level 26 with a plethora of weapon choices and power armor, I should be able to hold my own (maybe...). So I finally get to him, get a pop shot or two, and start backing up to get some space between us. He then stops, turns around, and goes back to where he was. I basically would sneak up, pop him a couple times, and when I ran away he stopped chasing. He took some time to kill, but still, you'd think it'd have a killer instinct or something. Is this a bug or something?