Time Out Please?

So I have 2 kids that LOVE eating and will eat anything and LOVE it, no matter what it is. And then I have sweet Cadie. She cannot be bribed, cajoled or threatened into eating or even trying something that she does not like. Last Canada day we tried and tried to get her to eat cotton candy, knowing she would love it - we must have tried too hard because when I finally managed to shove a bit into her mouth she screamed and spit it out as if I had fed her poison. So she refused to try supper tonight. She loves potatoes but these mashed potatoes still had some of the skins on them so they looked different. Anyway, I told her she had to sit at the table until she tried a bite. A few minutes later she starts bugging Libby - she's hilarious, she doesn't hit or pinch but she thinks she is because she says it - when she's really angry she actually goes up to the person and says "HIT, HIT!" So she was "hitting" libby and I asked her what she was doing because she seemed toally unprovoked - she replies that she really wants a time out. please? (so she can get down from the table) She's 2! I thought kids weren't supposed to manipulate that young!!