Daggerfall's homes were probably originally going to be furnishable by the player. There are still a few "Furniture Shops" scattered throughout the kingdoms, but they are hard to come by and have nothing of value inside. However, it is still quite interesting to look around. The interiors are shaped like regular stores, but are full of miscellaneous tables, cupboards, and wardrobes.
Where there should be a shopkeeper, there are usually several miscellaneous NPCs, allegedly affiliated with the Thieves Guild. I took some screenshots a while back when I last discovered one:
http://i30.tinypic.com/2rw3q6s.png
http://i29.tinypic.com/ml5q2w.png
http://i27.tinypic.com/21kiiw1.png
Those are indeed rare occurances. I only found one of them by looking on FAQs. Otherwise, I never saw one.
As for me, the weird stuff I always like to see is when I have to meet a quest NPC who is a male and when he wants to engage me in combat, he turns either in an Orc Shaman or a female warrior. six-changing/shape shifters, die!
I have a screenshot here of a funny occurance with dialogue.
Note that my character is a Khajiit.
http://i72.photobucket.com/albums/i185/DarkBrotherhoodmod/FunnyDaggerfallScreenshot.jpg
It was one of the few times where the random questions/answers made sense.
And damn him for telling me to be a cobber!