Guess what did I something more evil?
I was dealing my customer needs my source file, I refused to give him because he didn't upfront payment, so I told him I'm not going to deliver him he is desperate to test my source file, but I still keeping refuse to give him until upfront payment is done, so I told him I need food and ZIP file is waiting for him, one more thing, I yelled THIS IS NOT ORDER, THIS IS A CONDITION.