Lag or Exploit? (I've heard exploit)

[Agathon]

Hello,

What is the deal with corpses moving around on their own? I've heard this is an exploit. Until last night, I had not experienced it myself. On two occasions I saw a corpse moving around the battlefield freely. He was going up stairs, through doors, etc. I watched a corpse move around for 5 minutes once. Can that really be lag??? Is this a bug and the person is really alive, or is this an exploit and the person is dead but getting a free scouting chance?

Thanks,