I was checking on my habitats today and the game was running extra slow. I accidentally click on one of the "Expand" signs. Before I knew it I agreed to pay 360 gold to speed up the expansion.
Luckily for me I did not have 360 gold. Otherwise I would have wasted it on something I didn't want because there is no confirmation button and TeamLava has a no refund policy.
I dodged a bullet because I knew this and spend my daily cash to speed up breeding whenever I can. If one of the gold traps hasn't caught you yet, it will.
Moral of the story: Don't save your gold and if you do, never play when you get lag.