There are a lot of things out there that most of the general public know. This kind of information is referred to as common knowledge. An example of this would be that it is a bad idea to drive while drunk. However, despite the fact...

You went out with friends the other night, and you thought someone else was going to be the designated driver. As it turns out, it was actually your turn to be the designated driver. Now you have to drive everyone home after a few drinks....