They have been happy for years, despite the fact they had different taxonomies. This wasn’t really noticeable difference, but it took lots of their time, for simple reason, that each of them classified and organized things differently. Often, one could hear them replying “it’s in it’s own place”, or “it’s in the usual place”, or “you’ve put it into a safe place”, or “your hands classify things without any help of your brain” Looking for and searching were two quite important and time-consuming activities at their home. They came to an agreement to categorize and label all objects and to store them in an alphabetical order. For example, in the kitchen, spoons were placed after knives, following the forks. The problem was all those objects could all be classified as utensils and knives kept disappearing into the workshop area.