We had a visitor this weekend. A friend of my Human was passing through our world on the way home after a high school reunion. (This is a picture of me greeting this friend of my Human's.) This friend had gone to her 25th year after graduating high school reunion. My Human has her 25th year after graduation high school reunion next year.
Humans are stupid. They feel the need to wait 5 or 10 years at a stretch to get really excited about seeing people they know. Dogs, on the other paw, are really excited to see people each time they see them.
My Human says that reunions are a way that time grabs people by the shirt collars, shakes them, and yells, "YOU REALLY ARE THAT OLD!!!!"