NASA's Jet Propulsion Laboratory is an unconventional place with some equally unconventional signs and warning labels.
Your odds of death by landslide are one in a million per year. If you get caught in one, you can't do much to increase your odds of survival. Luckily, landslides frequently give warning before collapsing. These are a few precursors to a landslide, telling you to run before it's too late.
Apparently things like finger length, grip strength, and height may be reliable predictors of cancer, longevity and heart disease. Don't believe it? Check this weird list of potential risk indicators out anyway. It'll terrify, amaze, and amuse you.