Heaven or hell?

They checked a register,
They quickly counted heads.
But they forgot one person,
Because I didn't go to heaven or hell instead.

I was left on earth,
Lonely and scared.
I needed help,
But nobody cared.

I was forgotten about,
I was cast away.
No-one remembered me,
And I got more lonely by the day.

But then I found a hobby,
To let my anger out.
I creep into peoples rooms,
When nobody else was about.

And I took my trusty friend;
I called my friend the knife.
I used my friend carefully,
To steal other peoples lives.

I might pay you a visit,
I know where you live.
Because me and my friend,
Have a little gift to give.