The class was cheap. We only paid $25. I am just upset about felling like I left not knowing the laws.
Cliff notes version:
SC is a "Castle Doctrine" state, and a "stand your ground" state. That is, you have no duty to retreat from -any- place you have a legal right to be.
To justify the use of deadly force, you must be in fear of your life or serious bodily injury. Or, you must be acting in defense of an innocent who is in fear of their life or serious bodily injury.
In your home ... if someone breaks in while you are there, THAT alone is sufficient to put you in fear of your life or serious bodily injury.
You can not carry where prohibited by "proper" signage, or in any establishment that serves alcohol, regardless if you are drinking or not.
You are protected from any civil suits in a self defense shooting that meets the above criteria.
You are shooting to "stop the threat". Once the threat has been eliminated, you must stop.
Any form of "mutual combat" is -not- a self defense shooting. If you are prone to getting in fights ... don't carry.
There is more detail, but that is pretty much the "cliff notes".
PS ... I paid -nothing- (covered in my gun club dues) and it sounds like I got a much better class than yours. I wonder if yours actually met the minimum state requirements for the class. If any/all of the above is "news to you", then I'm pretty sure it didn't.