I can't stand my sister stealing from me anymore?

the cheapest one is like 20.00 - until further notice put baby powder in her hair dryer in the face bomb - or have a wet vac hose full of fllour in the face bomb - and if she continues - start secretly replacing some stuff with other stuff that will teach her a lesson - like empty perfume bottles with food color water - or secret black dye underneath the make up color some how - and for lotion - some form of icy hot at the bottum of the lotion - and and the back side of jewlery - some sort of itching creme - there is always more then one way to skin a cat