Oh wow then I was really lucky - I had one night where Pip decided he wasn't going to eat his fave spag bol. Dad was there and kept saying to me "don't let him win" and I refused to give in
I tried that *once*. She refused to eat a bite of a particuarly nice dinner one day (despite having no food for 6 hours before and claiming being starving hungry) and silly me said no food at all until you've eaten your dinner, which we fridged. We gave in around lunch the next day by which time she'd actually got sick from not eating for so long. Never again. Her will is stronger than mine, and stronger than common sense too.

These days if she refuses to eat something we just send her to her room (can't hear her complain in there) and she gets no TV. She's so hard to get to drink anything though (she doesn't seem to get thirsty) we make her drink even if she's refusing to eat dinner.