Pretty sure those aren’t mutually exclusive.

I always eat 2 M&M's of the same color but on either side of my mouth.

If I mess something up (2 on left side, or green on left red on right for example) I have to even it out for the next bite (2 on right side, or red on left and green on right) otherwise I'll lose my "M&M streak" and I don't wanna eat em anymore.

Then there's me, who groups then up and eats them in groups sorted by color.