Before I was married, I lived and worked in Yosemite National Park. There are a lot of advantages to living in such a beautiful environment, but there are also a lot of responsibilities. In addition to the city, county, state and national laws, there were rules about what you could and couldn't do to protect your safety. (Side note: Did you know that ANY crime you commit in a National Park is a felony? Yep! Even jaywalking.) -- Anyway, there are some extra precautions that have to be taken to protect you and the environment. One of those rules was DON'T FEED THE BEARS! On first thought it seems harmless, but once you begin to feed the bears, they expect to be fed. That's right. If you don't bring the food to them, they come looking for it. And now they are more hungry than before, and they've brought friends. All of a sudden it doesn't seem so harmless. They become dependent on you for their food source and this is where things can get real ugly, real quick. It's a much better idea not to get started in the first place.
The same goes for a lot of situations in our lives; drugs for example. Taking one hit seems like no big deal, but it's the beginning of a potentially devastating habit. The reality is that all addiction begins the same way... Someone tries something for the first time and eventually finds themselves hooked. No one ever wakes up and says, "Gee, I think I'll become a crack-addict today!" It doesn't happen. No one intends to become addicted. This concept applies to all potentially addicting behaviors. I.e. drugs, alcohol, tobacco, pornography, promiscuity, adultery, etc.
Heed my advice. Don't even get started with these potentially hazardous behaviors. You always have a choice, but the choice to abstain is much easier than the choice (and the process) to recover.