This is how the drinking fountains are set up at the health club I go to every morning. On some mornings, there will be a line three deep for the higher water fountain, while the shorter one remains empty. I am guilty of this as well. Why? Subconsciously, I think that the water in the higher fountain is better, cleaner, colder. Yet, intellectually I know that's absurd. Is it a spatial issue? Do I not like having someone so close to my back? If the nozzle was on the other side, would I prefer the shorter fountain? I suppose some people could have back problems. But that's not my excuse. Any other theories? Are we all just crazy?