Elegran, a good post.Gracesgran, I can see the compulsive 'blesser' saying it in any situation.as others have said, it's acceptable( though only just) to say it about a sweet little pet or young child, but that's all.I can't imagine anyone saying it when somebody drops a bag or anything else.However, if this saying continues in it's present unstoppable form, we may be hearing it from all, the high and the low; On May 8th for example ( or 2 weeks later who knows) a pundit from outside number 10..... " and here he is, our new Prime Minister....(insert any name here you wish) looking confident and relaxed,
Awww, bless!"