What more can they take?

This company is moving offices, and management decided they don't want to "waste" money on movers when they have perfectly capable employees who can do the job for them. Which is why they asked everyone to come to the office during the weekend and get to work. Now, the first question anyone who hears of this would ask is, are they going to pay anyone for the weekend overtime or the manual labor? And the unfortunely obvious answer is, only if you consider pizza at the end of the day "payment". Even though the company wanted everyone to know that no one is forced to help, they made it clear that management is definitely going to keep track of who is going to be there on the weekend and thus remember those who helped during performance reviews.