There was nothing more suspenseful than picking up a gem and then immediately whirling around with your weapon drawn in anticipation of a fight. You'd repeat this, when ultimately it wasn't until you were greedy enough to loot the bowl the items were placed in that you'd turn around and find a Dremora's warhammer in your face.
Seeing how Skyrim's dungeons absolutely scream "primeval", I'm hoping we'll be seeing a lot more interesting encounters like these in the game. You know they're coming, but they still never get old - and with physics, we could have even more convoluted traps, such as stalactites falling from a cavern ceiling when you pick up a gold coin.
Discuss all of your depraved booby trap fantasies here!