I'm going to call out a customer
What did this customer do for you to call them out?
Because he cost me a large sum of money and I can't afford it.
I'm sorry the customer costed you so much, but it's not their fault and I'm sure they feel super guilty about it. They don't need you to mouth them off in public, it's not professional and people will see you are not a good business owner and will stop coming there.
Okay I guess. But my employees and I are suffering, I need to let it out somehow. I would feel like no one cared if I didn't.
By calling the customer out they can be embarrassed and never want to come back. Also beware they can post negative reviews of your company too. Then your reputation will also suffer, so I would be quiet about it if I were you.