What are illustrative examples of how the Sabbath can be broken according to Sabbatarian Christians?

I've always heard examples of how the Sabbath is **not** broken, for instance, doing good to others, healing people, etc. However, I noticed that I've never heard examples of the opposite (how the Sabbath **can** be broken). What are illustrative examples of how the Sabbath can be broken according to Christians who hold to [Sabbatarianism](https://en.wikipedia.org/wiki/Sabbatarianism) ?