Its not okay to demand more than your fair share.
Bill wants to open a lemonade stand and tells Jack about it, the next day Jack has opened a stand himself.
Bill wants to be paid for his idea.
Bill goes up to Jack and asks for some money for his idea.
Bill storms up to Jacks stand and demands all of the money from the stand.
Bill and Jack agree to work at the stand together and split the money.
Bill and Jack fight and don't make any money because they fight rather than make sales.