How do I damage my own laptop, while still being fixable by only me

[Slupusher]

I'm petty as fuck, and I'm currently in a situation where I have no choice but to return this laptop back, little backstory is its been given to me by my aunt who recently passed away (last month), and now my cousins or her son needs or probably want the laptop back. I cant refuse for a bunch of reasons, they gave this laptop to me since its been damaged, constant BSOD but I fixed it by watching a simple YT vid. This laptop is probably my only chance to pursue my CS college course since we currently don't have any home PC, except for the pc in my moms school office. But probably my only last choice to get it back, is to pretend like its broken. Since I'm pretty sure they have a lot of options, they just want this back for a reason.