So I was grabbing juice out of the fridge and once again my g/f asked why I'm not using a cup as I chug the last of my son's juice in a stoned haze.

Only this time, I had an answer she couldn't rebuttal to...

"I never grab a cup because I'm saving the planet.
If I use a glass I have to use the limited fresh water we have to wash the glass and soap cost money. If I use a plastic cup I add to landfills. The juice was already in its cup. Why do liquids need more than one cup?"

*Silence.