Exactly that. Do you shut yourself in and rely on your own supplies? What do you do if you work? Tell them you are self-isolating beause you think you may have been in contact with someone who was on a ski-ing holiday in Italy and you are now off work for two weeks on full pay? Do you never go out? What about walking the dog?
Tales about "stingy" guests and hosts.
sticky labels on apples - remove before washing!