| Voluntary Risks | Involuntary Risks |
| Boating | Home Accidents |
| Driving a Car | Pedestrian |
| Motorcycling | Terrestrial Gamma Rays |
| Transcontinental Flights | Solar Radiation |
| Hunting | Cosmic Rays |
| Swimming | Air Pollution |
| Scuba Diving | Second-hand smoke |
| Smoking Cigarettes | Sharing a room with a smoker |
| Meteorite Strike | |
| Flood | |
| Tornado | |
| Lightning |