You, like most Americans, probably plan to run for president. You have plenty of time, theoretically; the general election is still 22 months away and even if you plan to seek the nomination of one of the major parties, those don't kick off until January.
Rearing is a common measure of activity and exploratory behavior used in the open field and sometimes in certain mazes. Nothing else. But I agree it could be related to very specific behaviors. I like the idea of escape.
2. rear-the side of an object that is opposite its front; his room was toward the rear of the hotel. back end, backside. nape, nucha, scruff-the back side of the neck. side, face-a surface forming part of the outside of an object; he examined all sides of the crystal; dew dripped from the face of the leaf.