I entered a new area, loading screen and all, to find a path going ahead, a hill to my left and plains to my right. I walk forward and see a group of 3-4 bandits walking down the road and I creep to a bush and prepare to sort my inventory, load all my guns, heal etc. etc. I come back out of the bush, walking slowly as to not produce to much noise, to see nobody out there. I keep walking and receive a wake-up call in the form of an assault rifle being fired into my skull from behind.
This isn't the first time, either. I was at a bandit outpost (of "2") about half my cumulative game time ago, I hosed down the bandits and looted their corpses then picked up and unloaded (but kept one) of their guns, now
my shiny new guns. I continue to sort my inventory when I hear BANG BANG as both barrels of a sawed-off are fired, from behind, into my skull.
I loaded and did the same thing, killing the bandits and all, then saved again. I sat there for a good 3 minutes waiting for this scum to show up. I walk through the house, enter a new zone, and immediately get my head blown off when the loading screen finishes. Fuck. Load, walk through there again, the bandit who shot me both times is mysteriously gone. I now look behind me every so often just in case the paranormal bandit decides to materialize and earn a killstreak.
S.T.A.L.K.E.R.: Shadow of Chernobyl. This game's AI is pretty good!