I'm not ready for Sienna to have her mom's sailor mouth, but eventually, when she's a teen, I don't want her to be afraid of speaking the language of her classmates and once she reaches adulthood, I hope to be ready for her to speak such words in my presence as part of normal conversation because the reality is that cursing is ordinary and sometimes, often even, acts as a release for pent up stress.
Profanity isn't shocking anymore. It's not edgy or sassy or hip or rebellious. It's just a sad, tiresome example of our shrinking vocabulary. Thanks, Twitter. People swear when they have nothing to say, but they want to talk. My feeling? You're not getting paid by the word and you're not a sailor. So keep it simple.
It's okay to feel frustrated with your children. It is okay to be angry at not being able to control a situation. We are all humans, including our kids, and hence, we are not perfect. We're deeply flawed creatures. A part of being flawed is recognizing that we may have angry thoughts related to our children when we are having a bad parenting day.