srw
It's a bit more complicated than that...
I did wonder whether that was the solution to @Marmion's woes - take his plain bottle-caps and nail them upside down to the floor.
Incidentally, while clearing up the bottle of my second-favourite mass-produced and evilly mega-brew-corp beer which had smashed on my ceramic tiled kitchen floor (bah humbug and other Hobgoblinish words) that my favourite mass-produced and evilly mega-brew-corp beer had a plain bottle-cap. I still like it, though.
Incidentally, while clearing up the bottle of my second-favourite mass-produced and evilly mega-brew-corp beer which had smashed on my ceramic tiled kitchen floor (bah humbug and other Hobgoblinish words) that my favourite mass-produced and evilly mega-brew-corp beer had a plain bottle-cap. I still like it, though.