Huff... Puff... Grind! The 3 Little Pigs Get Smart

The 3 Little Pigs have been to Architecture School. They know how to build Wolf-Proof housesThe wolf huffed and he puffed. But the pigs' houses didn't fall. The wolf-couldn't get in. The pigs couldn't go out. They were all hungry. The pigs knew that a problem can be a solution out-of-place. Could they make good use of all that huffing and puffing?