In regards to driving... what is the first thing you think of when someone mentions "The 3 second rule"?

The rule is that you should be three seconds behind the driver in front of you, as measured by the time it takes for you to pass an object after the person in front of you does so. The recommendation of three seconds is based on reaction times when driving in normal conditions, and should therefore be lengthened when driving in adverse conditions (e.g., inclement weather).

I don’t know. I’ve only heard it in referring to food dropped on the floor. If I drop something in the car it stays where it is until I’m stopped and parked.

No idea. If it is about following distance, we were taught one car length for every 10 miles of speed.

I thought it was the opposite of @SavoirFaire – when you are passing someone on the left (normal behavior in the US) wait three seconds before putting on your signal and moving back to the slow lane.

About how close behind – I learned something different from @savoir – I learned that you shouls never be closer than ‘n’ car lengths behind the guy in front – and ‘n’ was based on speed divided by 10.

So if you are driving 20 mph, you should be at least 2 car lengths back. If you are driving 65, at least 6.5 car lengths back, and so on.

Following distance when driving

I aim for no less than 5 car lengths behind. Some times more.

If you drop your car on the floor you have 3 seconds to pick it up before it officially belongs to the dog.

Never heard of it.

If you are stopped by police and happen to be black, you have 3 seconds to live.