From experience, they do not. If you're doing what I think you're doing, your biggest problem will be the eventual slowdown of cLAW after evaluating several thousand items an hour. Eventually, the monster corpses start overwhelming your ability to loot them and you'll have to stop and restart the script. It wouldn't really be a problem, except that the interval you're standing still looting gets slightly longer with each corpse, until eventually you just stand there and die while poking around in the corpse.