Apparently saying goodbye takes up to two days per year. The key is making a good enough impression that you can fade into the background and people will think "gee what a nice person"
Sometimes it just feels good to disappear. I don’t want to hug everyone so I will sneak out and end up in my bed with a couple of texts saying variations of “where did you run off to?” and I will fall into a peaceful slumber knowing I am missed.