you got a lot of grandmas (around 500), so you decide to open a stand, its name:"Trade a grandma". You can buy, sell or rent a grandma. You get the grandmas ready and put a pricetag on each, they all cost 2$. Now you quietly wait for your first customer. Even though your grandmas are saying things like "please dont sell us", and "We thought you loved us", you dont care. All you want is money