Water Finds Its Level—So How Does It Stick to a Globe?

Another point that raises questions about the globe Earth theory is the behavior of water. We all know that water finds its level. Fill up a bathtub, a swimming pool, or even a glass, and the surface of the water settles into a flat plane. So, how does water cling to a spinning globe without flying off? Some say it's gravity—but if that's the case, why doesn't water stick to a ball that someone's holding in the ocean? If gravity is powerful enough to hold oceans in place on a spinning globe, it should be able to make water stick to smaller spherical objects, too.