What are some examples of excommunication and other penalties from the church?

This nun was excommunicated for approving an abortion to save a woman’s life. https://www.npr.org/templates/story/story.php?storyId=126985072

Since we are talking about the Catholic Church, they could sentence you to being an alter boy.

In the past if a Catholic married a Non Catholic,the couple couldn’t be married in the Catholic Church unless they agreed to have all future children Baptized Catholic.

Don’t know if the Catholic would be excommunicated IF He/She didn’t agree.

Basically it was in effect ensuring that the Catholic Church had a steady stream of Parishioners, as well as making sure that each child that was Baptized could enter into the Kingdom of Heaven then.

Well, during the Crusades, the Catholic Church (and the Pope) were pretty good at massacres and mass slaughters.

Indiscrimate killings of non-Catholics was a highly used tactic in the 1200s and 1300s.

Frankly, the harshest punisment for most believers is just trying to understand the freaking nonsense in “canon law” that a small group of politicized bishops are using to manipulate their parishoners. The so-called “excommunication” isn’t even recognized by over half the diocheses in the country:

“On Sunday, two days after Cordileone posted his letter, Pelosi received Communion at a Jesuit church in Washington, where Cardinal Wilton Gregory, the archbishop of Washington, has signaled his opposition to the idea of barring politicians from Communion because of their views on abortion.”
https://www.washingtonpost.com/religion/2022/05/27/pelosi-barred-dioceses-communion/

Shunning
“the Penalty”