D-Man could tell could how frustratingly logical my thinking goes! OK, I can think of two things related to time that only last a moment then it's gone (although both could be argued) but we're talking about the actual moment, that might be mentioned in an advert. Birth and death. (Birth control or coffins, life insurance, etc.) Life is the most precious thing but it only lasts a moment, then it's gone. I'll go with that and assume your advert was for life insurance or against abortion. :nod:
