Almost 100 workers at Apple Penn Square, Oklahoma, are to vote on forming a labor union, potentially making it the second US Apple Store to unionize.It's not clear how many people work at Apple Penn Square, but staff must individually join a union before they can then take part in such a vote."I want everyone to realize unions aren't just for those bad and hard workplaces, it is for everyone in America, we have the right to unionize," Patrick Hart from the store told CNN."I just want people to realize that, because it can do a lot of good for a lot of people who feel they're stuck in their workplace."While working to improve pay is a factor in unionization, staff at the store have said that the impetus for them is to "have a seat at the table and negotiate what our experience looks like.""