Comment on Creepers are smarter by TheEvOlLuTiOnS
The day has come... *builds obsidian house with 3 block thick walls and no door* ... *forgets diamond pickaxe*
My friend did that once... It took him three days to get out.
I think the solution would be Invedit 
This day is called Update 1.8.1 
This is the day my fortresses are put to the test... As long as they're one at a time...