It is never acceptable to forgo/skip a checklist. (we are not talking about emergencies in the air and severe time crunches where you may not have a choice to finish one or start another, depending on the circumstances) No matter how tired you are, how much of a hurry you are in, how much you think you know, how annoying it feels to you or whatever. They are there for a reason, even though after a time they become ingrained in your memory or you think they have been. The reading of them, the responses and actions mean something. They make you focus and you know without a doubt, what has been addressed. They are the standards that you must use each and every time.
It's the one thing, the one time you didn't do it or check/confirm something, that can bite you in the ass, cause an issue and possibly kill you at some point. It's better to "do" while thinking and observing the task at the same time. If you begin skipping the check lists or parts of them, and can't perform the basics, what else are you going to be haphazard about, accept or guess on?
Complacency has no business in the office. Ever. All you need to do is start reading a few accident reports where check lists were skipped, missed or not completed and the end results. I don't care if you have 1,700 hours or 25,000 hours. Follow the correct procedures and do them on every flight. It's your job as the Captain to mentor your crew and not only set the example, but to be the example and not pass along your bad habits and half-assed attitude to your crew.
