[bayouborne]

It's variation on a tired joke -

If you've been rear-ended, chances are the person behind you wasn't a very good driver. If you've been rear-ended 7 times, chances are that you are the person who isn't a very good driver.

[AtlasBarfed]

Yes what do people do when behind somebody that's chronically slow and incompetent?

They tailgate them

[Doxin]

I'd file tailgating under "incompetent". Being impatient is no excuse.