I Filled Up the Gas for Free

I went out with the girlfy yesterday.
So, as usual, if i'm in the college, i would borrow my friend's Kancil Turbo.

Normally, when you use somebody's car, you would always fill up the oil right?
Of course.
So, i filled up the gas at the Petronas station in Kg. Baru. It was around 5pm, and the after office rush is starting to kick in.

So, i filled up RM10 (cukup la tu) for that time, and gave the akak counter RM50.
The balance was supposed to be RM40, right?

RM50 - RM10 = RM40

But no. She gave me 5 pieces of RM10 instead.
I counted the money in front of her.
She was unaware. Totally.
This means, i'm about to fill up the gas for free.

Then, guilty conscience starts to creep in.


Should i take it?
or 
Should i return it?

Usually, in most cases, i would surely return back the money. It's just RM10 anyway.
But somehow, i really had a hard time in deciding whether to return or not.
Damn.

Then, i slowly turned around, and walked away from the counter.

What the fuck? Why am i doing this?
It's not worth it. Think of all the 'sial' that's surely gonna happen.
Remember Karma? 
What you give you get back. What you take you will lose.
Quick, go and return it!

Somehow, after all that shit came up on my mind,
i couldn't gather enough strength to turn back and return the money.
I went straight to the car, and drove off.
Why oh why?

I am Evil.
I'm sorry.
I never intended it.

If you were in my position, what would you do?

And little that i know, this decision would later haunt me....
Don't forget to come back later and read the continuation of this story..