This was one of the worst interview processes ever. The COO asked me to schedule the interview with him (which is not a normal practice at all) for a Saturday. He cancelled at the last minute. Then, when the interview finally happened in the following week, he treated me terribly. Kept laughing at me, making passive-aggressive comments. He even said, "What's the business model of the previous company you worked for?" (I'm keeping the company's name a secret here). I didn't know what it was, and he said, "I'll make sure the CEO of that company knows that since we are friends". Arrogant, insecure, terrible.