Voodoochild, hiding your stash inside the case won't mess it up. I've been doing it for years AND I'm a certified technician. Just be careful that you don't try to put it in or take it out while the computer is on or even plugged into the wall. Then you're risking electricution and frying the components. (That static shock you feel when you touch something metal every once and a while is 2,000 volts of static discharge - it only takes a tenth of that to kill circuitry.) The best measure you can take is to touch the inside of the chassis with one hand while you mess around with tucking the weed in there so you equalize your potential with that of the case. I highly doubt your parents will be brave enough to open up your computer. A printer is an even better hiding spot if it's yours.