No I don’t mind at all. Thanks for asking.
The underlying brain phenomenon responsible for this is what is known as an “event boundary”. Our brains compartmentalize events and tie them to the environment, or room, in which they occurred. By moving from one room to the next, the brain effectively creates a file containing all the information about the first room, and what you did there, and tucks it away. It then starts to focus on the second room. In other words, due to the way the brain is trained to store information, we forget things as soon as the environment changes.