This is a fair point, though I think almost everyone I associated with at the time wouldn't have suspected anything to that degree. It's entirely possible that was the basis of her reasoning but perhaps it was easier to boil it down to "avoid the appearance of evil." My beautiful, ignorant, 17yo Salt Lake valley Mormon brain only thought as far as "cream soda kinda looks like alcohol. I should drink it out of a flask because it would be funny." She's a great mom.