@Lacrimosa:
As far as I know, a knuffel gets a chance to find food when it doesn't find any material or item, instead of not finding anything at all. So if your knuffels are pretty leveled up and their chance to find something is very big, they rarely are able to not get anything and therefore have a chance to find food.
Or at least it was like that some time ago. I think. There were many changes...
Anyway, I love the idea, but I have a feeling it may be too convenient for the users, even with the option available only for each knuffel separately. So... Maybe it shouldn't be free? I don't know, 10 FP per knuffel or something... Because it would be a shame to not implement it... I think.