USERS

The longer the intervals between its use, the more difficult it is to notice that there is a pattern- a game in play; a con even. When you DO see it, pay attention and, in the words of almost every church clerk, "Govern yourselves accordingly". Folk will use you if you let them. Take note of the things for which your participation is not considered, the things you're asked to do, and the things from which you are excluded. Take note of the times it was clear that you were valued, and the times when it was obvious you had been used.
Big or small, snakes have the same approach. They're hoping you don't see them before they see you. Even if you do decide to befriend one, you have to remember they're still a snake.
It's amazing how people who are very business-like about THEIR business, and demand and require that others follow proper channels when seeking THEIR services, suddenly want to send standards, practices, and costs plummeting to the ground when they seek the services of others. They wouldn't do anything out of the kindness of their hearts if you paid them; wouldn't volunteer or lend a hand if their lives depended on it, but they DO know how to reach out for freebies and favors if the alternative means depleting their OWN resources to the same tune of what they think THEY are worth.
After a while you'll really get sick and tired of the faces and voices of people who always seem to seek you out when they want something for nothing.
Every now and then you just have to appreciate caller ID.