(1) Like realestate, know your location (ie know your source and how the item is processed). Watermelons, fruits/veggies, bottomfeeders (ie don't want to eat shrimps, bottom feeders after the BP spill - Gulf of Mexico? -better make sure you know your source). You bet someone is distributing that seafood into restaurants and grocery stores. (2) Know about the basics of food poisoning and when milk/water is useful and not, when emesis (vomiting) helps/hurts. Swallowing pennies post 1983 and their zinc content vs. copper is another interesting story on delinking currency from their original material composition of gold, silver, copper -pennies included. You can get basic information about heavy metals -Pb (lead), Cadmium (Cd), Copper (Cu), Zinc (Zn) from your poison control center. (3) People should know that life is quite fragile. It is the slow poisoning effects that really take on their toll in our health. (4) Lastly, dryer vent build up can leading to fires. Yes, that's right and exploding dryers due to overheating has historically been a major fire hazard. Make sure the vent is cleaned and take notice if it starts acting funny. http://www.cpsc.gov/cpscpub/pubs/5022.html CBS: http://www.youtube.com/watch?v=IPmbO4XCAkU