Reply #21: If they're smart enough to get here from another solar system,

[smoogatz]

they're probably smart enough to vaporize us with their neutron-blasters if we don't hand over the Earth's supply of Cubic Zirconia, which is a necessary component of the matter-inversion drivers that power their spaceships and which is, inexplicably, all but impossible for them to manufacture on their home planet. Meanwhile, a competing race of Draconoids arrives, and start making little growly yummy sounds every time they spot a man in a toupee.