The cat is not allowed on the furniture.
Alright, the cat can go on the furniture, but NOT on the kitchen counter.
OK, the cat can go on the kitchen counter too, just not when I'm preparing food. Deal?
Fine... The cat can go wherever it wants, whenever it wants, as long as it doesn't swat me in the face at 5:30 in the morning demanding food.
The cat will be fed at 5:30 in the morning.