A sonnet about Dutch tears, aka Prince Rupert drops, as suggested by Alex.
My will is strong, and none of you can break it
I’m indestructible. A real hard case.
Do what you like , I swear that I can take it
Something to say? Then say it to my face!
Try hammers, even bullets! You won’t harm me
You think I’m fragile? You have lost your mind.
Destroy me? You do not even alarm me!
But please don’t ever sneak up from behind.
My toughness comes from being under pressure
And that is in itself a heavy load
So though I can face down any aggressor
Just touch my fragile side and I’ll explode.
Think you’re invulnerable? It doesn’t matter
Somebody knows a way to make you shatter.
Tom Juniper Poetry 