In Agricola, the Fireplace and Cooking Hearth both allow you to convert animals to food "at any time." Can you use this ability to cook animals if you don't have room in your pastures?
In particular, if you have zero pastures and grab four sheep, can you cook three of them and keep the fourth as a pet (or cook all four), or do you only get to keep/cook one of them, while the other three presumably wander off and get eaten by wolves as you dither over which one to eat first?