['My boss called me the other day to tell me I would be receiving a package the next day.  No other info, but she told me not to open it until I called her.', 'So have you gotten to open it yet??', 'Yep! I was hoping it was a special award that my company give to deserving employees.  Turns out it was just some HR paperwork that she needed to go over with me regarding my team. Boo!']
Wow! I would have told her to fill out the paperwork herself getting your hopes up like that.
My boss called to tell me that I would be receiving a package the next day, and that I should call her before opening it.  I was really hoping that it was a special award that my company gives to deserving employees, but it turned out to be some personnel paperwork that she needed to go over with me.