[thefactor]

Legally, negligence means not using reasonable care. Or, put another way, not acting in a way that an ordinarily reasonable person would act.

If this guy was cooking hot dogs while driving, that's one thing. But we aren't sure why he didn't stop. He may have been doing something that all people do when they drive.

[devere]

“He may have been doing something that all people do when they drive.”

The only thing that ALL “people do when they drive” is pay attention to traffic, signs, and signals. Some of us even skip the radio, conversation, and cell phone and concentrate on safety.