The last ordinary task can make departure real before the ceremonial goodbye does.

Leaving becomes real in small acts rather than in speeches. Emptying the bin, returning the mug, unplugging the lamp, one last ordinary motion in a place that will not need you to do it again. Ceremonies are arranged for other people; the plain task is where your own body understands. That is why the feeling often arrives at an inconvenient moment, over something trivial.

When you are ending something, give that last plain task its minute instead of rushing past it. Do it deliberately. If the feeling comes then rather than at the gathering, nothing is wrong and no apology is owed.