Just done a quick google search with regard to remuneration laws. It seems that the new rules that came into effect on the 1st of July this year could have some bearing if every staff member who holds shares votes against them two separate times. If this happens, the board gets spilled:
Shareholder
Could be worth a bit more research and reading. 25% of the total people who cast votes is the magic number, not 25% of the total shares.