Rose #2 is a very serious treat monster. She is extremely focused on retrieving just the right kind of candy.
And here she is opening it. Note the extreme concentration on her face:
And here is Rose #1, valiantly searching for a piece of candy that has no peanuts or tree nuts in it:
All I do is referee the number of candy items that are actually consumed. If left to their own devices the Roses would devour the entire treat bag in one sitting.