Can we talk about setting boundaries?

I think a lot of people—especially women—have trouble setting and enforcing boundaries in their relationships with other people, romantic and otherwise.

Do you have any experience with this? Learning to set boundaries? Realizing your boundaries were too extreme?

When are you setting boundaries, and when are you being controlling? For instance, you might ask that someone not swear at you during an argument (reasonable boundary) but what if you ask them not to use any angry or hostile language at all? Does that become controlling?

Maybe not the best example. I’m really just interested in hearing how other people have dealt with this.