How do you shrink chip packets?

well.. first you buy a packet of chips, then you put the packet in the oven with chips in it still, then u put it in the oven for about 10 min @ 180degreesC. then you take it out ,then u flush it down the toilet so no1 can see wat you've just done!!!! ta-da!!!!!!!!!! and that's how you shrink chip packets!!!