At the weekend we were out shopping and my dd walked smack bang into a shop glass door. It was really hard to see that it was there and not open (it was a double door (-one door open the other, not) if you know what I mean and although there was a sticker it was really high up so no chance of a little 'un seeing it. She banged her face badly, really cried and now has a minor black eye due to the bump. I didn't say anything at the time but wonder whether I should go back and point it out...AIBU?