If you lead a team, your mood is part of everyone’s workday. Handle it like it matters.

Whoever is in charge sets the weather. A manager in a bad temper changes how a shift feels for everybody present, and people start spending energy managing around them rather than doing the work, which nobody says out loud. Having a bad day is not a crime; letting the whole room carry it is a leak you can reduce. Your mood becomes part of the job once others depend on you.

On the next day you are in a rough state and responsible for others, say so briefly and then keep it contained. One sentence is enough.