The newspaper where I work changed owners Wednesday; by Thursday I was told the new owners will not recognize accrued vacation time. It's up to the old owners to pay it out - if they can, I suppose. That's ten days I may or may not get paid for. Plus, as of my anniversary date with the company - July 31st - I would have gotten my two weeks again, but the new owners consider everyone a new hire, and no one will get vacation until June 11, 2015. So I've gone from two weeks annual paid vacation to none until a year from now, and then I get one week.
With no paid vacation time now, I notified both the folks in London and Detroit my participation is off. I still plan to go to SoonerCon, ArmadilloCon and Fencon - at the worst, I may only participate on Saturday and Sunday.