Kitchen Layout

What are some kitchen design mistakes that can turn your life into a mess?

This reminds me of feng shui (Chinese geomancy) that prohibits a kitchen layout that makes the back of the person who cooks facing the entrance of the kitchen or a door, and it is believed that if one does it, he will probably be less fortunate in his life. 

The relevance of this (not based on feng shui) make sense when one is cooking in the kitchen having his back facing a door or an entrance, he is not visually aware if anyone enters the kitchen, and when one enters, it might scare him and cause an accident when he is cooking.