I have a fairly standard college dorm mini fridge. It has a couple of shelves, some places to store water bottles or drinks, and a mini freezer compartment. Unfortunately, the refrigerator had been designed in such a way that the refrigerator and the drink rack are unusable for their intended purpose.

The freezer door does not close snugly like a standard-sized freezer

The back of the freezer has a gap that opens up into the rest of the refrigerator. This causes the freezer to never maintain a stable freezing environment, rendering the freezer unusable to keep items frozen.

The drink rack is on the size closest to the freezer, which causes any bottles placed on the top row to collide with the freezer.

This prevents the refrigerator from closing and renders the top rack of the bottle rack to be unusable for most standard water bottles and flavored drinks.

The freezer was probably designed with cost, size, and efficiency constraints. It costs more to properly seal the freezer section than it is to loosely separate it from the rest of the refrigerator. It would also take up more space to properly seal off the freezer compartment by requiring a separate hinged door inside the refrigerator itself. Also, by only half separating the freezer, the refrigerator can simply chill the freezer and let the cold air permeate the rest of the refrigerator on its own without having to work to maintain two separate environments. The drink rack was probably placed near the freezer because placing the bottles closest to the door hinge prevents the drinks from moving as much when the door opens.

To fix these problems, the freezer section can simply be removed and solve both problems. The freezer section cannot perform its function within the current size of the refrigerator and is not typically needed for a typical college dorm. If it is needed, the freezer can move to a separate partition on top of or below the regular refrigerator section (like a typical full sized refrigerator). The price would go up, but the model would better fit those who use the freezer section. In either option, by moving the freezer out of the regular refrigerator section, the bottles in the bottle rack can now fit in the refrigerator without problem.

For learnability: the owner of the refrigerator must discover the flaws of the freezer on their own, usually at the cost of a cup of ice cream. A similar discovery must also be made to identify the problem of the drink rack. There aren’t any signs that indicating the insufficient performance of the freezer section, so it is not an easy bug to discover. But, on the whole, most people understand how refrigerators work and thus will understand the basic design easily. For memorability: the loss of delicious ice cream sacrificed in finding the shortcomings of the freezer is memorable enough to prevent further loss of ice cream. The drink rack prevents forgetfulness by keeping the refrigerator open until the bottle is removed from the top rack, making it fairly good at memorability. For efficiency, the refrigerator only contains 1 partition (the freezer), so it is fairly optimized for frequent users quickly grabbing things from the main section of the refrigerator. For accessibility, because most people have interacted with full-sized refrigerators, the basic layout and operation of the mini refrigerator is easily understood by most people.