Jacob is Quirky Like Mom and a Few Others

I know there are some fellow weirdos out there that count M&Ms and visually divide walls. Those folks will enjoy knowing Jacob just joined the club. We were practicing multiplication and got to 7x3 when he commented that he know this one because he can count by 7s. Thinking that a bit odd I probed for more info and he told me he knows because he "counts holes on peoples faces." Then since he can count by 7s it's faster to count the holes in faces of a group because he has it memorized by groups of 7.