What Is So Hard About STFU?

Why is shutting the fuck up so difficult? 

I should never watch daytime tv ever.  For any reason. People on daytime tv stress me out.  They make me tired.  Gives me heartburn. 

On court tv shows it seems like 85.9% of people that get their cases thrown out have it happen because they can't stfu.  Oh, you're just about to rule in my favor?  Let me say something that blows my whole case.  Because stfu is hard.

Oh, my opponent is making themselves look an ass?  I know.  I'll keep talking over them and annoying everyone.  I can't stfu, I might explode. 

You actually bought my story of bullshit, but I'm too dumb to keep my lie straight?  Let me keep talking and digging a hole for myself.  I like holes, you know what I don't like?  STFU.

Please stfu people.  Save yourselves