Somewhat of an odd issue

[Broadleaf]

Hello all.
Recently my mother decided that a suitable punishment for an issue that needs not disclosure was to rip my watercooled, quite expensive computer from its power source (the wall), and store it in her bedroom until it is deemed appropriate to be returned. I explained myself to her, that my PC is essentially my pride and joy, something I worked on building and saving for, for a very long time.

She has offered me one opportunity. If I can successfully offer her a clear solution, a different punishment in other words, she will return the computer to me. If not she will keep it at her leisure.

So ultimately my question is as follows.
Without using software, ie (parental controls etc.), what can she do to restrict access to my PC which is is my room, using some sort of lock or perhaps there are other ways of locking a PC as such.
Ideas?

 

[Supahos]

Uh she can take your power cords and lock them up at night?

 

[ghost878]

OR can call an electrician and fix a power main outside the room and switch it whenever needed

 

[USAFRet]

1. You voluntarily hand her the power cord and the keyboard at the appointed hour, on time, every time. 1st violation, the whole thing gets locked up for the duration

2. Suck it up and ruminate on whatever infraction caused this.