Depends on whether the no no is dangerous or not. If not, then I never mind it, but if it is, then it's a loud shout and a swift bop to the head. If it's harmless, then I usually just either laugh, or usually tell her she has to help mommy clean it up. Of course, the last time I asked her to help me throw something away, she got really gung ho about it and started throwing everything away... clothes, shoes, toys. Ah, to be 2 again!
Yes, it's important to draw a line between just a wee no no and something serious. Otherwise, punishments wind up not mattering at all. The punishment must fit the "crime".
Be careful what you ask any two year old to do...as you've learned. They really are very literal and if a "chore" seems to be "fun", they will get carried away.LOL