How to break an iphone charger?

I have a stepdad who i absolutely despise. He's always being a hypocrite, getting a problem for EVERHTHING, and nagging my mom about the small things i do, like laughing too loud with my brother or leaving my room door open. He has an iphone 6 charger, and i'm wondering: is there any way to break the charger and have him not knowing until he see's it? Its my small way of getting revenge, so he can be annoyed and pay some extra bucks for a new charger. I tried water on my backup charger, but it won't work.

Chop it in half with a katana.

Stretch it out using your hands then crumple it up like paper until the rubber starts to crack and rip. Trust me he will be pissssseeedddddd off.

I don't help anyone destroy anything, and no one else should.

Hi so he knows just how to wind you up. I wonder why are you an annoying little monster.