It's fine to make exceptions for illnesses, holidays, or unforeseeable circumstances.
For example, there are derogations covering ' unforeseeable circumstances and accidents ' and ' foreseeable surges of activity ' .
Ask about a trial program if possible, in case owning the animal is not feasible due to unknown allergies or other unforeseeable conflicts between you, your family, and the new dog.
Many experiences are based on unforeseeable factors.
For example, there are derogations covering ' unforeseeable circumstances and accidents ' and ' foreseeable surges of activity '.
