Just wanted to report a (funny) bug with Oblivion:
The Line of Sight is correctly implemented. So is the Sight-blocking function of items. BUT Beth didn't think about player creativity. Put a Bucket on the head of any NPC and you can steal everything. Because there is no Line of hearing, you can even kill the buckethead's spouse.
Now the most important weapon for thiefs/assassins are: BUCKETS!
Stealing demonstration video:
http://www.youtube.com/watch?v=rt5aUdijAN8
Murdering demonstration video:
http://www.youtube.com/watch?v=6PG2CPSxE_0&feature=related



Some glitches in Bethesda games are worth buying the game only for seeing them! I hope this one will never, ever get fixed! 
