Sneaky deathclaws? You'd have to be blind to not notice a 15 foot tall mutated lizard coming to bite your face off.
On topic: If referring to minecraft creepers... No. They destroy to much of my stuff already in Minecraft as is. But I'm all for the idea of having something completely silent, Barley noticable, Come out of no where to attack you. Like Nightkin at night on the mountain. I was able to spot a few if I was actually looking for them but half the time they ran up on me with bumper swords and scared the hell out of me.
What can I say? I had low perception. But people other than me did get caught off guard by those lizardy mutants.
This might be the same in Skyrim: dragons could be the new deathclaws or creepers. A shadow dragon maybe?
http://images2.wikia.nocookie.net/__cb20071218133746/uncyclopedia/images/e/e5/Wonkatastic.gif is usually what happens to topics not meant to be taken with life or death seriousness in the Skyrim forums. Mainly because of http://www.bimmerboost.com/images/imported/2011/05/8156rage_face-1.jpg people. And if the http://www.funnypictures.net.au/images/crazy-kitten-with-gun1.jpg don't shut down topics seen as "useless" to anyone. http://www.sacramento-home.com/images/blog/BeingTooBusy_582F/TheInternetIsHereClean_thumb.jpg happens.
Minecraft? I don't think it really has an official release.
Notch announced the official release out of beta to be 11-11-11, actually on account of Skyrim being released haha. Probably wants to be done with it to get his hands on the game