NO!

Imagine if everytime you said "NO" your hairstyle changed. Imagine yourself standing in front of the mirror saying NONONONONNOO and one second your hair's short and nerdy, the next you grow thick golden locks, next you turn bald, etcetc. Best of all in class, your teacher says "Class, is one plus one three?" the whole class says "NO!" and there is a gigantic BOOM sound and everyone's hair changes. Or, if you're getting scolded and the scolder(?) says "There will be NO More of this NOnsense" and her hair changes so you just laugh. And imagine everytime your hair style changes the old hair actually doesn't disappear, it flies off as a bunch to be exchanged with someone else who said "No" at the same time as you. So if you're from Singapore and the other fateful person who said No at the same time as you is from Germany, you could just cling on to the old wig/hair and you get free transport to Germany.