Unhelpful

I was at a friend’s house, and as we were talking, he asked if I was thirsty. I was, so I followed him into the kitchen, and watched as he poured two large glasses of Coke with ice. Not surprisingly, the drinks had a large foamy head. I was expecting him to wait patiently as it fizzled before pouring more in. I took my glass.

He then rubs the tip of his nose with his finger, and touches the foam in his glass. To my surprise, the foam in his glass dissipated at a rapid rate. As he reached for my glass, I instead took the two-liter and poured the rest myself. I learned something that day:

Next time, ask for water.