Broken for you, by Stephanie Kallos, is a wonderful book I just finished reading.
Broken for you, by Mother Nature, is what happens to the bottles in your bottle wall if you don’t cap them.
To be more specific: Rain + freezing temperatures = shattered glass
Yes, this happened last year. No, I did not learn.
I did start collecting caps and snapping them onto bottles, but it is dull work, and makes the bottles less attractive (imho), so I haven’t gotten very far.
The only upside to collecting the shattered fragments and mentally kicking myself was the fantastic ice shapes that emerged from the broken bottles.