Carlsberg: Probably the best idea in the world
I saw this ad back in Christmas while on holiday in Bulgaria. I haven't seen the actual bottle with the bottle opening bottom, or been able to find much on the net, none the less, this is a great example of human behavior study. When you don't have a bottle opener, you use what you've got...another bottle, a lighter, a pavement...this is probably the best idea in the world, in terms of opening a beer bottle. Clever little Danes!