I have that feeling, too. I am so excited to go, but am dreading hearing those words from work that I can't.
I work in a lab and a new person came about 8 months ago to "work" in the lab. Unfortunately, in the eight months, he has put in about 10 hours in the lab. Well....when I go on vacation, he will be required to work in there since there is only one other person and we are open 13 hours a day, seven days a week.
He has no intent on doing this, and I am waiting for the day when they tell me that there aren't enough people and then I am going to have to "drop a dime" on him. That will not go over well with the higher-ups and I will be blacklisted by my senior personnel. In the military , that is career suicide.
Oh well.....I work hard and deserve this vacation. Plus I am taking my kids and Mom because I am getting ready to deploy soon for at least six months so I can't disappoint my boys!
Wish me luck and keep me in you prayers....