Agreed, especially when you're dealing with external clients. I've been in situations where internally we've been fine with a slipped go-live date, only for a C

Agreed, especially when you're dealing with external clients. I've been in situations where internally we've been fine with a slipped go-live date, only for a CEO at a client to send an email at 4:50pm putting everyone on blast and demanding that all developers stay at the office until it is live, or else (no lie, literally had that email, quote for quote, in my inbox less than a year ago). Corporate culture includes everyone involved in a project. You can't be calm if you have someone outside of your office going mental over something being a day or a week late.