So the husband grabs the knife...
The wife says: No dear husband! Not the knife, not the knife!
The husband looks at the knife, then at the wife.
The wife says: No dear husband, you eat soup with a spoon!
What a great idea. I wish I was a soapmaker now. I would also sell body soap. And eyeball soap. Probably some blood and monster soap. The blood one could be very fun. Just imagine the results.