I do the same. Ya can always tell by the way the music is building but she never sees it coming. I don't think I've ever cried watching a film, like it was said, how can you not realise that it's not real.
Seriously??? I'm sure we covered this a couple of weeks ago - the book is brilliant, a proper girly tear-jerker but I thought the film was well wide of the mark (despite Stanley Tucci being brilliant in it) It's just an opinion, though.
You're right, they never see it coming It's childish but it's funny as hell and never gets old. You should hide whenever she goes to the bog/kitchen/whatever and leap out on her. The best bit is that she knows your going to do it (again) and can hear her carefully trying to make her way back to living room while looking in every corner and switching on any lights she can get to. I suppose it's a mild form of torture but funny as ****.