During the Vietnam War, I was a medic at a combat support base overseas. Part of my job was dealing with infectious diseases, particularly STDs, closing bars when the mamasan's who worked for the American officers and senior NCOs who owned them didn't supervise their 'ladies' in preventing them from getting and spreading gonorrhea and syphillis to GIs. Stupid, right? Well, I got death threats from the American owners for cutting into their profits. No problem, I had heat on my side, experience in giving back more than I got and handling dipshit assholes. That was the supply side of the economics. The demand side was much more stupid. I don't like to generalize about people, but sometimes it's true. I hate to admit this because my roots on my mother's side of the family come from South of the Mason-Dixon line, and after all these years of living in California, Montana, Colorado, etc, I still have a real Southern drawl that is very obvious I am told... and so did a lot of these unfortunate customers who ended up in our VD clinic. To make this story go a lot faster, I'm only going to talk about one individual whose inability to learn threatened to make his fucking dick fall off. This guy was a guest in our clinic six times in six months, dumber than a box of rocks, and no matter how many times I told him to get a box of rubbers... back then we didn't call it 'protection'... he would show up the weekend after the second payday of the month every time like clock work. He asked me two questions... Why didn't the penicillin shots give him immunity... and, How come he didn't built up an immunity to the disease. This was how I explained it to him... "No two diseases are alike... some diseases your body can fight on it's own... some diseases have had so much research done on them, science has isolated the virus or bacteria responsible and we've developed vaccinations, serums and antibiotics to counter their spread. Some diseases we can stop and reverse their spreading by helping the body with medications... and then there are those diseases like the ones you keep catching that the more you catch it, the more resistant it becomes to medication... until they just don't work anymore. The resistant strain becomes a whole new variant of the old disease and nobody knows how to stop it... all because you didn't take precautions... because you thought you were bigger than the disease. We have a ward at Clark AFB in the Philippines for guys like you who don't listen, don't take precautions, and end up getting something... they don't tell me what happens there... all I know is the guys don't go home till whatever the bug is they've got is neutralized... whether they're waiting for medication or surgery... they aren't going to put guys on the streets back home that are stupid enough to give it to their wife or girlfriend." "Bullshit," he said, laughing at me.  Well, he ended up at Clark AFB... and four or five years after I got out, I met one of the guys who had been to that ward at Clark. I found out what they did to some of them and just about puked. End of story. So the next time some big shot tells you you don't have to take precautions, that you can beat this... before you believe him, ask yourself if it's worth losing your fucking dick if the son-of-a-bitch is full of shit!