Yes! Things shouldn't prevent all the crazy that's out in the world... Users will try to find creative ways around requirements, being more graceful in handling the crazy is usually appreciated
On the other hand "Make doing the right things easy and the wrong things hard" are good design rules. Putting something alive into a refrigerator and leaving it there, will probably make it dead. It might be a serious mistake by the end user. The smart refrigerator of the future might want to double check; "Are you sure you want to put the milk in the crib and the baby in the refrigerator?"