READDLE ME THIS, READDLE ME THAT..

What is easy to get into, but hard to get out of? 

READDLE ME THIS, READDLE ME THAT..

 You will always find me in the past. I can be created in the present, but the future can never taint me 

What am  I

READDLE ME THIS, READDLE ME THAT..

Tear one off and scratch my head, what was red is black instead.

What am I

READDLE ME THIS, READDLE ME THAT..

If you have me, you want to share me. If you share me, you haven’t got me.

What am I