Don't Spit on my Saliva

WHY DID NOT ONE WANT TO DRINK THE SALIVA?  I waxed intellectually about the benefits saliva offers but still no one would take the free saliva!  Why?

Sal's Post:
There is no difference between spit or saliva except for how we think about each. This is called the social construction of reality. Our reality is how we experience the world. The social construction is that our society or the people around us influences how we experience the world. Hence our experiences(reality) are created (constructed) by others (society). Spitting in different cultures or different situations (baseball) can be experienced differently, i.e. more or less acceptably. For example, most of us have been to baseball games and watched players spit all throughout the game. We didn't get repulsed by that. During one World Series, Reggie Jackson averaged 19 spits per at-bat! Another example is when parents or siblings use their saliva to wipe off a baby's face. We don't find that repulsive, but if a teacher drops saliva onto a desk it becomes gross. This can be true for nearly all of our experiences; feelings of happiness, sorrow, stress, worry. Nearly all of these are created within us by the society we are in. 
Here is an example that you might not realize. The Japanese would be grossed out by the typical American bathroom. In Japan, toilets are located in a different room than the shower and bath. And the Japanese shower is always separate from the bath. They see the shower for cleaning and the bath for soaking after you have cleaned. What are some moments in your own life where you experience these feelings, but when you stop and think about it, you realize that the feelings have been created for you by society?
Another way social construction can be illustrated is in our symbols and how they shape our reaction. For example, there is a feeling that you should not walk on the Patriot.There is no real reason why, but it is a social construct. Another example is the faculty restrooms. Some of the restrooms are for individual use, that is one person at a time. These rest rooms are exactly the same: one toilet and one sink. However, the rooms are labelled with "Men's" and "Women's" signs. That makes men feel weird if we use the "women's" room, even though the men's room is exactly the same. (and vice versa). The sign is a social construct that elicits that feeling.