When you glance between the fatty food and the low calorie food and take the low calorie food. But then, you end up eating the fatty food anyway.
Hmm.. Should I take the low calorie food or the high calorie food? I'll take the low calorie food. I'll get more healthy!
One minute later.... Um, I'm hungry again. *Takes fatty food* Mmm, *mouth full* thish ish goof (good)! I'll be sure to do anti-swapatunity agian soon!