When they were teenagers Ariel Shlein and his brother started their own small business called Mad Science, performing science shows for children at schools, libraries or birthday parties. After franchising the business, it grew so quickly Shlein has little time for anything but Mad Science. He is hoping to add 40 franchisees to a growing business empire that already includes 73 franchisees. Mad Science gives each franchisee a three-week course on how to perform, the kind of experiments to perform and how to market themselves. The franchisees have to work hard to drum up the business and send eight per cent of their gate back to Mad Science along with a $55,000 franchise fee. With yearly sales at over two million dollars, Mad Science must try to get a handle on its impressive growth.