Cracked!

I used to be in a max-security prison in a small house ... but I came out of that house.
 
I have now mastered how to unlock all the locks and doors. No prison can hold me anymore.

Now happy and enlightened, I am out and I provoke my mother: "Mummy, tell me to go back in and I will be out in a jiffy". Afraid that she will not see me again, she persuades me to stop playing games.
But now I love to play it. So I jump back into the prison in the house through an opening in its roof and quickly picks the first prison door with some splinter. The next door lock is more tricky, this requires some lateral thinking and so I tilt my head (:-)) to solve and break open the door. The third lock is purely on some higher level and so I concentrate and recite something and I am out again!

Free and Happy!