Fix it or decide to find it charming.
I once had a manager who, when tired and stressed, behaved poorly by talking incessantly in a rudely contemptuous manner. I needed to fix this because this was something that was oft repeated and did not sit well with anyone in the organization. It could not be ignored, it had to be fixed. A discreet and civil chat resolved the issue.
In a different place, a manager told a customer that his business was no longer welcome here because he was too mean to the staff. This manager was surprised to learn that I was okay with it. But civility is a guiding principle: My trusted manager had his team’s best interest at heart.
Deciding to discover likeable things in a person or situation is a choice. After you determine that a circumstance does not require your intervention, show your appreciation and decide to find it charming.