Galactus and Mr. Mind

Villains come in all sizes in the world of comics, and these two are clear reminders of that.  One of the scariest things about Galactus was that, due to his extreme size and power, he generally considered humans to be less than insects and beneath his notice.  Mr. Mind, on the other hand, would often go unnoticed and underestimated by mankind - much to its regret!  I can only imagine a union of these two would be bad news for Earth.