Once my sister and I were going on a weekend trip with our mother. She had to make a stop and we were waiting in the parking lot in front of the building. In the same lot there was a small bus w passengers getting on and off. Our mother came out of the building and headed towards the bus. When we called her she waved and got on the bus!
We died laughing. She finally made her way to our car and denied that she had gotten on the bus. We definitely thought it was an early senior moment.