During one night she noticed that her husband came home earlier. She told the guys to hide in the sacks. When her husband entered the room he asked "What are these sacks doing here?".
The woman answered "Well, my relatives came by and left these as a present.".
The man walked towards the first sack and kicked it. "Be-e-e-e!" - came out of the sack. "Oh, we can make some nice steak out of this."
The man walked towards the second sack and kicked it. "Oink-oink!" - came out of the sack. "Oh, we can make some good porkchop out of this one."
The man walked towards the third sack and kicked it. No sound. He kicked it again. Still nothing. Then he kicked it really hard.
"Dude, are you stupid? I'm a sack of potatoes." - came out of the sack.