If you give Sarah a cookie, she's going to politely decline.
She's going to say no because she's dieting. Again.
She will instead ask for a glass of water.
If you give Sarah a glass of water, she will explain that she's quitting caffeine.
And she will then probably tell you about her Coke Zero addiction.
If you give Sarah a glass of water, she will drink it.
And will politely excuse herself to use the bathroom.
For the four-hundredth time that day.
If you give Sarah a reason to make her mad, she will probably explode.
And then will blame it on the caffeine withdrawal and hunger.
Oh, fuck it. You know what?
Just give Sarah the damn cookie.