Something weird that I noticed about Franklin.

It's not an easy catch, and it's at random moments so you'll really only notice if you rewatch the show. But I noticed that throughout the show, whenever Franklin drinks something, whether it's water or Coca-Cola, he always takes small, careful sips as if he were drinking alcohol. Then, in episode 10, when he actually DOES begin to drink alcohol, he always takes big sips or chugs it down like he's drinking water, juice, or soda. Was this an intentional contrast?