Yeah well everything I learned in nursing school and in my few short months as a Registered Nurse, I should've already known. These are some examples:
1. Don't drive drunk. Duh. This should be a given, yet people keep doing it and the consequences can be tragic.
2. Wear a helmet. If you're going to ride a bike, scooter, or motorcyle wear the helmet. Believe me saving your life and not having a bolt drilled in your head so they can measure the pressure in your head either before/after they choose to do surgery is worth it. Lucky you. I have personal experience with this. Just wear the dorky helmet.
3. In scooter versus car/ truck/ SUV the scooter (or rather the rider) never wins. The end.
4. Don't ask your physician for antibiotics when you don't need them. If you do not have a bacterial infection you do NOT need antiobiotics. This is the reason that MRSA, VRE, and C-Diff (YUCK) are becoming such a problem. If you have a cold or the flu get some rest, drink fluids, and take some tylenol.
5. Wash your hands. This is a classic Kindergarten lesson, now it just applies more. Hand washing is the number one prevention of infection.
6. If you think "I probably shouldn't be doing this" or "this is probably going to hurt" before you do something, save yourself and the hospital a lot of trouble and money and just don't do it. (I dedicate this to all Terrell boys. Don't tell them I said that, haha).
7. Along with #6 a lot of people suffer from a disease called NCM (No Common Sense). If you have common sense, use it. If you don't have common sense find a way to learn it or have someone teach it to you.
8. Guns and knives are NOT toys. Don't get me wrong, I love guns, but there are rules for using them. If you don't know how to use them and don't respect them, stay the hell away from them.
9. Don't smoke. You'd think this would be self explanatory by now, but since people are still doing it, it's obviously not. Yes, I realize it's addictive, but guess what, heart attacks, COPD, and cancer hurt (and are expensive).
10. Wild animals are NOT pets. 
(Case in example)
(Case in example)11. Don't play with fire. It burns. Duh.
12. Look both ways before crossing the street. Thank you Moms of the world.
13. Don't talk to strangers. Still applies, adults.
#14 removed because of recent nursing experiences
15. SMART cars are NOT so smart. The amount you will save in insurance and gas money will not make up for the emotional, physical, and psychological pain you will go through when you crash this so called "smart" car. They show videos of SMART cars coming out of crashes faring pretty well, unfortunately, the person inside that car does not usually fare so well. Sure you may live through it, but you will probably wish you hadn't. But hey, if you want to have broken legs, ribs, etc. and have a drill stuck in your head so they can take pressure off of your brain because you have a serious head injury be my guest, buy the stupid car, idiot. 
(Not so smart, or cute anymore)
(Not so smart, or cute anymore)16. Honesty is always the best policy. The end. (How about you just follow the 10 Commandments, they're there for a reason).
17. Get out and move. Exercise. Your body will thank you later.
18. Every person on this earth, no matter what they've done and who they are, are worth something and should be treated as such.
19. Balance and moderation are oh so important. While I am not one to banish my patients from eating salt and sweets (as a cardiac nurse), it's all about moderation. Moderation. Moderation.
20. To end on a positive note: Love, laughter, and faith heal.
So there you go, that's just some of what I've learned (or already knew). That was an awfully expensive education to "learn" those. Lame.
