It's important to understand that everyone has their own unique habits and concerns when it comes to safety and household appliances. Your housemate's behavior of unplugging the toaster after every use may be influenced by various factors. While I can't know their specific reasons, here are some common reasons why someone might exhibit such behavior:
Fire safety concerns: Some people are extra cautious about fire safety, and they may have heard stories or had experiences where leaving appliances plugged in resulted in accidents. Unplugging the toaster after each use gives them peace of mind that there is no risk of an electrical issue causing a fire.
Energy conservation: There are individuals who are very conscious of energy consumption and want to minimize unnecessary electricity usage. Even though the toaster uses a relatively small amount of energy when plugged in, some people prefer to unplug appliances when not in use to save energy.
Personal preference or habit: Certain people have ingrained habits or preferences that may not necessarily have a practical reason. It could be that your housemate has always unplugged the toaster after use, and it has become a routine for them.
Concerns about electrical surges: Even though your wiring is fine, some people worry about electrical surges that could potentially damage their appliances. Unplugging devices like toasters could be their way of protecting them from such possibilities.
Environmental considerations: For individuals who are environmentally conscious, unplugging appliances might be a part of their broader efforts to reduce their ecological footprint.
Cultural or family influences: Certain cultures or family backgrounds may have specific beliefs or practices regarding electrical appliance use, which could explain this behavior.
While your housemate's habit may seem excessive to you, it's essential to respect their concerns and preferences. If it doesn't cause any inconvenience or problems for you, there's likely no harm in letting them follow their routine. However, if it becomes a point of contention or you have genuine concerns about electrical safety, it's best to have an open and understanding conversation with your housemate to find a mutually agreeable solution.