The walls are teleport proof. I go in a invincible bubble when it can't be popped and nothing and absolutely NOTHING can stop me. Not even the following: Holes, Tnt, Guns, NOTHING CAN STOP ME.
Get killed because they noticed you touch your nose, showing you lied. say the toilet's broken, while the guard opens the door, quietly strangle him to death and disguise as him, taking all of his stuff. While he has a prisoner's clothes, you flee.
It doesn't work as you are looking at a computer screen, trying to kill guards by typing /kill. I have snipers to take out all the guards, I walk out of the prison like a sir.