How to sharpen blunt scissors ?

When I was watching TV last week , this remedy for blunt scissors was aired on show . I thought of giving it a try . It is very simple . All we need is blunt scissor and aluminium foil . Method is as explained below ................ Take blunt scissors in one hand and aluminium foil in the other . Now make small pieces of foil ( by cutting it ONLY WITH SCISSORS ) . I had a great wish to cut the foil by my hand , but it is not recommended ! After this , the scissors will be sharper than previous stage . SPECIAL NOTE : If this plan don't work , I am not to be blamed . Problem is with blunt scissor itself . It is the right time to buy a new scissor !