This is not a firm date. The client cleary says "He MIGHT come in AROUND 8:00 pm". He states he MIGHT come in. It's a possibility, not a fact. He is not saying he WILL come in. He MIGHT, there's a rational doubt about whether he's going to come in or what. We need to understand the syntax of the words, and fix ourselves to the overview. If the client MIGHT come in, that's a Soft Date scenario.