If you have gum and are chewing it, to prevent people from asking if they can have some always carry a pack that is empty. That way you can say no I'm all out even though you have a whole box of them.
Hack #7
If you have gum and are chewing it, to prevent people from asking if they can have some always carry a pack that is empty. That way you can say no I'm all out even though you have a whole box of them.