Enterprise Architect after morning requirements session: "Well that is actually more simple than I thought. I don't think we'll need the full four days we have scheduled for this. What do you think."

Me: "Yeah, I don't think it will take four days."

*** Hours later right before end of day***

EA: "So how's it going?"

Me: "Pretty good... [details]..."

EA: "So are we still on track to be done by end of day tomorrow?"

Me: "Wait, what?"

EA: "You agreed it would be done in two days, remember?"

Me: "No, I don't remember that."

EA: "Yeah I asked if it could be done in two days and you said yes. Anyway, I'm heading out, just make sure it's done by end of day tomorrow."