It all depends on your environment.
If you hang around Russian sailors all day, you will barely be saying words that aren't swearwords.
If you hang around high class Bourgeoisie, than even a single swearing word might get you pushed out of their circle.

Words are meant to transfer information. What you need is to guess as correctly as possible about what people hear when others speak.
If they can handle it - use as much cursing as you wish.
If not - use the methods they can understand and handle.

That being said - my entry:

• You freakin' fuckin' whore of a shemale! Open your dirty cum-filled ears and listen when smarter people talk! YOU ARE WRONG!

This is obviously not an easy thing to listen to, but there are cases when even this could be considered acceptable.
One simply needs to recognize their surroundings, and act based on that.