If they are going to allow us to puke anytime we want then I want to submit an idea to further that line of thinking: Passing Gas and Belching. If you eat the max amount of food ( 3 food ) your character should let out a big viking belch. And later...you should have to pass gas. AND if you are hunting and passing gas creatures will smell you from further away. Now, whether they actually WANT to find what created that nasty odor is a completely new topic, but they should detect you.

hahahaha