Zork Zero/Dead ends

Things which should you try, will make it impossible to finish Zork 0.

• Open the nut away from the Jester.
• Wear out the magic wand (use 5 times) before needed.
• Drink all (4 times) of the magic potion before needed; you can spill it accidentally by typing "drop potion" instead of "drop cup". It will be also spilled if you fall down the gravel pit from the Grotto.
• Break a weight of the Tower of Bozbar game (by putting a heavier one over a lighter one).
• Teleport on the Island while the Yacht or Dirigible is not docked there.
• Let the fox, the chicken and the worm eat each other.
• Enter the Inquisition by having the magic Cloak in your inventory (it will be taken, and if you survive you won't have it back).
• Fail to take the box from the Inquisition (you won't be able to enter the hall after you leave).
• Drop any usable item in the Pits or in the Cauldron.