This article really does explain why we all, in most facets of our life avoid things we know we should do.
As a PM is it working out you EAC because you think it think give your a number way above your budget. It bring your plan up to date cause you have a feeling that you are going to have to ask people to work the holidays to get back on track.
Have a read then I endorse the do 2 minutes. I just did writing this and feel better for it.