Make a story with 'one' word

It's simple

RULES

So it goes like this:
Person 1: Once
Person 2: Apon
Person 3: A
Person 4: Time

​

I'll start of course,
One

 

little

 

Sass

 

went

 

In

 

to

 

Mappy's

 

torture

 

Facility

 

and

 

They

 

died

 

.

(New sentence)
Mappy

 

Ate

 

the

 

duck

 

Tales Woo-oo

 

And

 

Then

 

Became