Why is Captain Push on Medium often drinking out of a water bottle?

I love the Captain Push character on Medium, his chemistry with Allison (Patricia Arquette) is really excellent. One thing I was always curious about it why Captain Push is often shown drinking water out of a water bottle. He does this in the early episodes, and then does it again in the Season 3 episode, “Apocalypse, Push,” which I just watched. I just google’d to see if I could find the answer, but I couldn’t find anything. Hopefully one day I’ll run into Arliss Howard and I’ll be able to ask him about it. :)

The Internet is broken (Evan Williams)

“I thought once everybody could speak freely and exchange information and ideas, the world is automatically going to be a better place,” Mr. Williams says. “I was wrong about that.”

~ Evan Williams, in a N.Y. Times article, The Internet is broken.