common knowledge

[imaginethat]

What do you think should be common knowledge that isn't?

[LoveLife&Laughter]

...if your phone lines are cut, use your cell phone.

[officerripley]

Yeah and don,t split up either if ur in a slasher movie, that always gets somebody killed, every time.

[CaliforniaNow]

20% chance of rain does not mean it's going to rain; neither does 40 or 60 or even 80.  They're predicting, folks.  Umbrella?  Sure.   Got one in the car.  But don't bet money.